Statistics 2018 | Statistics homework help

  

The appertaining scatterplots affair the completion assessed compute of properties that include​ residences, and twain color the similar observations. Accomplished competency​ (a) and​ (b) beneath.

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Click the icon to end the scatterplots.

a. Which do you reckon has a stronger sympathy after a time compute of the 

propertylong dash

the 

reckon of clear feet in the residence or the reckon of fireplaces in the​ residence? Why?

A.

The reckon of clear feet has a stronger sympathy after a time the compute of the​ gear, as shown by the circumstance that the objects are further dissolute in a updirect watchency.

B.

The reckon of clear feet has a stronger sympathy after a time the compute of the​ gear, as shown by the circumstance that the objects are hither dissolute in a updirect watchency.

This is the chasten exculpation.

C.

The reckon of fireplaces has a stronger sympathy after a time the compute of the​ gear, as shown by the circumstance that the objects are hither dissolute in a updirect watchency.

D.

The reckon of fireplaces has a stronger sympathy after a time the compute of the​ gear, as shown by the circumstance that the objects are further dissolute in a updirect watchency.

b. If you were intricate to prognosticate the compute of a gear​ (whither thither is a​ residence) in this​ area, would you be telling to reach a melioobjurgate prognosticateion by shrewd the reckon of clear feet or the reckon of​ fireplaces? Explain. Choose the chasten exculpation beneath.

A.

Square feet. Completion compute is further strongly associated after a time clear​ feet, consequently thither is hither variability in completion compute for any dedicated compute of clear feet.

This is the chasten exculpation.

B.

Fireplaces. Completion compute is further strongly associated after a time​ fireplace, consequently thither is hither variability in completion compute for any dedicated compute of reckon of fireplaces.

C.

Neither consequently the society is the similar among the compute of gear and clear feet and the compute of gear and the reckon of fireplaces.

  

The scatterplot shows the reckon   of effect hours and the reckon of TV hours per week for some gspherical learners   who effect. Thither is a very scorn deviate. Is the deviate absolute or​ denying?   What does the watchency of the deviate balance in this​ composition? Establish any   stcolsettle objects.

A scatterplot has a dull   axis dedicateed "Work Hours" from 10 to 70 in intervals of 10 and a   updirect axis dedicateed "TV Hours" from 0 to 30 in intervals of 5.   Points plotted accept a slightly denying deviate among almost (10, 30)   and (5, 50), after a time intermediate updirect expand environing 15. all objects sojourn after a timein   the dull district among 10 and 50, after a time the separation of one object at   70. 

What is the​ deviate? What does the watchency of the deviate​ balance? Choose the chasten exculpation beneath.

A.

The deviate is denying. The further hours of effect a learner​ has, the further hours of TV the learner watchs to contemplate.

B.

The deviate is absolute. The further hours of effect a learner​ has, the fewer hours of TV the learner watchs to contemplate.

C.

The deviate is denying. The further hours of effect a learner​ has, the fewer hours of TV the learner watchs to contemplate.

This is the chasten exculpation.

D.

The deviate is absolute. The further hours of effect a learner​ has, the further hours of TV the learner watchs to contemplate.

Identify any stcolsettle objects. Select the chasten precious beneath​ and, if​ indispensable, satisfy in the exculpation box to accomplished your precious.

A.

The idiosyncratic who effects 

70

hours replys to be an​ outlier, consequently that object is disjoined from the other objects by a vast similarity.

B.

The idiosyncratic who effects 

nothing

hours is an strange​ object, consequently there​ aren't that manifold hours in a week.

C.

Thither are no stcolsettle objects in this graph

  

The ttelling to the direct shows the   reckon of crowd maintenance in a cordage and the importance of vileness​ (in pounds) at   the subdue lawful anteriorly vileness pickup. Accomplished competency​ (a) through​ (c) beneath.

People

Trash​   (pounds)

 

3

         

   

24

      

3

   

28

      

5

   

76

      

2

   

16

      

7

   

83

     

a. Confront the appose among these reckons by using a computer or a statistical calculator.

requals

0.956

​(Round to three decimal fixs as​ insufficiencyed.)

b. Suppose some of the importance was from the container​ (each container weighs 

5

​pounds). Subtract 

5

pounds from each​ importance, and confront the new appose after a time the reckon of crowd. What happens to the appose when a invariable is acquired​ (we acquired denying 

5

​) 

to each​ reckon?

​(Round to three decimal fixs as​ insufficiencyed.)

A.

The appose is 

nothing

The appose coefficient abates when a invariable is acquired to each reckon.

B.

The appose is 

0.956

The appose coefficient sojourns the similar when a invariable is acquired to each reckon.

C.

The appose is 

nothing

The appose coefficient acceptions when a invariable is acquired to each reckon.

c. Suppose each cordage contained precisely 

impure eras

the reckon of​ crowd, but the importance of the vileness was the similar. What happens to the appose when reckons are multitudinous by a​ invariable?

​(Round to three decimal fixs as​ insufficiencyed.)

A.

The appose is 

nothing

The appose coefficient acceptions when the reckons are multitudinous by a absolute invariable.

B.

The appose is 

0.956

The appose coefficient sojourns the similar when the reckons are multitudinous by a absolute invariable.

C.

The appose is 

nothing

The appose coefficient abates when the reckons are multitudinous by a absolute invariable.

he appertaining computer output is for prognosticateing sole elongation from operative elongation​ (in cm) for a bunch of women. Assume the deviate is rectilinear. Epitome statistics for the axioms are shown in the appertaining consultation. Accomplished competency​ (a) through​ (d) beneath.

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Click the icon to see the computer output and epitome statistics.

a. Reverberation the retrogradation​ equation, using the words​ "Hand" and​ "Foot," not x and y.

  

Predicted   Foot 

equals

15.910

plus0.578

  

Hand 

  

​(Round to three decimal fixs   as​ insufficiencyed.)

b. Establish the acception by using the formula 

bequals

r StartFraction s Subscript y Aggravate s Subscript x EndFraction

Substitute the computes into the formula.

  

b

equals

r StartFraction s Subscript y Aggravate s Subscript x EndFraction

   

equals

left parenthesis button direct parenthesis eras StartFraction left parenthesis button direct parenthesis Aggravate left parenthesis button direct parenthesis EndFraction

       

​(Type integers or decimals. Do     not​ entire.)

Simplify the direct plane of the   equation to establish the acception.

  

b

equals

0.578

       

​(Type an integer or decimal     rounded to three decimal fixs as​ insufficiencyed.)

c. Establish the​ y-catch by   using the formula 

aequals

y aggravatebar minus b x aggravatebar

Substitute the computes into the formula.

  

a

equals

y aggravatebar minus b x aggravatebar

   

equals

left parenthesis button direct parenthesis minus left parenthesis button direct parenthesis left parenthesis button direct parenthesis

       

​(Round to three decimal fixs     as insufficiencyed. Mark the conditions of your countenance in the similar disposeify as they     reply in the original​ countenance.)

Simplify the direct plane of the   equation to establish the​ y-intercept.

  

a

equals

15.91

    

​(Type an integer or decimal   rounded to two decimal fixs as​ insufficiencyed.)

 

incorrect, 4.3.50 

              

The appertaining ttelling shows the​ self-reported reckon of semesters accomplishedd and the reckon of competency accomplishedd for 15 learners at a society ground. All competency were​ counted, but cognate summer gspherical was not interjacent. Accomplished competency​ (a) through​ (e) beneath.

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Click the icon to end the axioms consultation.

a. Reach a scatterplot after a time the reckon of semesters on the​ x-axis and the reckon of competency on the​ y-axis. Choose the chasten scatterplot beneath.

A.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (1, 10); (3, 40); (3, 85); (4, 80); (5, 85); (6, 95); (6, 100); (6, 110); (7, 5); (7, 120); (7, 120); (7, 125); (8, 105); (8, 120); (10, 150). The objects accept the illustration of a proper cord that rises from left to direct among objects (0, 25) and (10, 140), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (7, 5). All coordinates are border.

B.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (0, 150); (2, 105); (2, 120); (3, 5); (3, 120); (3, 120); (3, 125); (4, 95); (4, 100); (4, 110); (5, 85); (6, 80); (7, 40); (7, 85); (9, 10). The objects accept the illustration of a proper cord that descends from left to direct among objects (0, 140) and (10, 25), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (3, 5). All coordinates are border.

C.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (1, 140); (3, 65); (3, 110); (4, 70); (5, 65); (6, 40); (6, 50); (6, 55); (7, 25); (7, 30); (7, 30); (7, 145); (8, 30); (8, 45); (10, 0). The objects accept the illustration of a proper cord that descends from left to direct among objects (0, 125) and (10, 10), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (7, 145). All coordinates are border.

D.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (0, 0); (2, 30); (2, 45); (3, 25); (3, 30); (3, 30); (3, 145); (4, 40); (4, 50); (4, 55); (5, 65); (6, 70); (7, 65); (7, 110); (9, 140). The objects accept the illustration of a proper cord that rises from left to direct among objects (0, 10) and (10, 125), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (3, 145). All coordinates are border.

This is the chasten exculpation.

Does one object be out as​ strange? Teach why it is strange.

A.

The object 

​(3

​,145.0

​) 

stands out as stcolsettle consequently its​ y-compute is fur inferior than the ​ y-values of other axioms objects after a time similar​ x-values.

B.

The object 

​(2

​,44.5

​) 

stands out as stcolsettle consequently it is not practicable for a idiosyncratic to accomplished a constituent of a sunder.

C.

The object 

​(3

​,145.0

​) 

stands out as stcolsettle consequently its​ y-compute is fur better than the ​ y-values of other axioms objects after a time similar​ x-values.

This is the chasten exculpation.

D.

The object 

​(0

​,0.0

​) 

stands out as stcolsettle consequently the idiosyncratic has not accomplishedd any competency.

b. Confront the numerical compute for the​ apposition, including the stcolsettle object.

The appose is 

0.682

.

​(Round to three decimal fixs as​ insufficiencyed.)

Find the numerical compute for the appose when the stcolsettle object is not interjacent.

The appose is 

0.927

.

​(Round to three decimal fixs as​ insufficiencyed.)

Comment on the contrariety in appose when the stcolsettle object is removed.

A.

When the stcolsettle object is removed from the axioms​ set, the appose acceptions consequently the object is very seal to the cord.

B.

When the stcolsettle object is removed from the axioms​ set, the appose abates consequently the object is very seal to the cord.

C.

When the stcolsettle object is removed from the axioms​ set, the appose abates consequently the object is far from the cord.

D.

When the stcolsettle object is removed from the axioms​ set, the appose acceptions consequently the object is far from the cord.

This is the chasten exculpation.

c. Reverberation the equation of the retrogradation​ cord, including the stcolsettle object.

Predicted 

Unitsequals

10.0plusleft parenthesis button direct parenthesis

Semesters

​(Round to one decimal fix as​ insufficiencyed.)

Report the equation of the retrogradation cord when the stcolsettle object is not interjacent.

Predicted 

Unitsequals

denying 3.8plusleft parenthesis button direct parenthesis

Semesters

​(Round to one decimal fix as​ insufficiencyed.)

Comment on the contrariety in the equation of the retrogradation cord when the stcolsettle object is removed.

A.

When the stcolsettle object is​ removed, the catch of the equation abates and the acception acceptions.

This is the chasten exculpation.

B.

When the stcolsettle object is​ removed, the catch and the acception of the equation twain abate.

C.

When the stcolsettle object is​ removed, the catch and the acception of the equation twain acception.

D.

When the stcolsettle object is​ removed, the catch of the equation acceptions and the acception abates.

d. Insert the retrogradation cord into the scatterplot endow​ prior, including the stcolsettle object. Use technology if practicable. Choose the chasten graph beneath.

A.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (0, 0); (2, 30); (2, 45); (3, 25); (3, 30); (3, 30); (3, 145); (4, 40); (4, 50); (4, 55); (5, 65); (6, 70); (7, 65); (7, 110); (9, 140). The objects accept the illustration of a proper cord that rises from left to direct among objects (0, 10) and (125, 9), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (3, 145). On the similar graph is a cord which rises from left to direct among objects (0, 10) and (125, 9). All coordinates are border.

This is the chasten exculpation.

B.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (0, 150); (2, 105); (2, 120); (3, 5); (3, 120); (3, 120); (3, 125); (4, 95); (4, 100); (4, 110); (5, 85); (6, 80); (7, 40); (7, 85); (9, 10). The objects accept the illustration of a proper cord that descends from left to direct among objects (0, 140) and (10, 25), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (3, 5). On the similar graph is a cord which descends from left to direct among objects (0, 140) and (9, 30). All coordinates are border.

C.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (1, 140); (3, 65); (3, 110); (4, 70); (5, 65); (6, 40); (6, 50); (6, 55); (7, 25); (7, 30); (7, 30); (7, 145); (8, 30); (8, 45); (10, 0). The objects accept the illustration of a proper cord that descends from left to direct among objects (1, 120) and (10, 10), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (7, 145). On the similar graph is a cord which descends from left to direct among objects (1, 120) and (10, 10). All coordinates are border.

D.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (1, 10); (3, 40); (3, 85); (4, 80); (5, 85); (6, 95); (6, 100); (6, 110); (7, 5); (7, 120); (7, 120); (7, 125); (8, 105); (8, 120); (10, 150). The objects accept the illustration of a proper cord that rises from left to direct among objects (0, 25) and (10, 140), after a time intermediate updirect expand of encircling 25. The objects accept an intermediate updirect expand of encircling 25, bar for the outlier at (7, 5). On the similar graph is a cord which rises from left to direct among objects (1, 30) and (10, 140). All coordinates are border.

Insert the retrogradation cord into the scatterplot endow prior when the stcolsettle object is removed. Use technology if practicable. Choose the chasten graph beneath.

A.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (0, 150); (2, 105); (2, 120); (3, 5); (3, 120); (3, 120); (3, 125); (4, 95); (4, 100); (4, 110); (5, 85); (6, 80); (7, 40); (7, 85); (9, 10). The objects accept the illustration of a proper cord that descends from left to direct among objects (0, 140) and (10, 25), after a time intermediate updirect expand of encircling 25. On the similar graph is a cord which descends from left to direct among objects (0, 120) and (9, 55). All coordinates are border.

B.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (1, 140); (3, 65); (3, 110); (4, 70); (5, 65); (6, 40); (6, 50); (6, 55); (7, 25); (7, 30); (7, 30); (7, 145); (8, 30); (8, 45); (10, 0). The objects accept the illustration of a proper cord that descends from left to direct among objects (1, 80) and (10, 19), after a time intermediate updirect expand of encircling 25. On the similar graph is a cord which descends from left to direct among objects (1, 80) and (10, 19). All coordinates are border.

C.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (1, 10); (3, 40); (3, 85); (4, 80); (5, 85); (6, 95); (6, 100); (6, 110); (7, 5); (7, 120); (7, 120); (7, 125); (8, 105); (8, 120); (10, 150). The objects accept the illustration of a proper cord that rises from left to direct among objects (0, 25) and (10, 140), after a time intermediate updirect expand of encircling 25. On the similar graph is a cord which rises from left to direct among objects (1, 25) and (10, 155). All coordinates are border.

D.

0100150SemestersUnits

A scatterplot after a time a dull axis dedicateed “Semesters” from 0 to 10 in intervals of 1 and a updirect axis dedicateed “Units” from 0 to 150 in intervals of 25 contains the aftercited 15 plotted objects: (0, 0); (2, 45); (3, 25); (3, 30); (3, 30); (3, 145); (4, 40); (4, 50); (4, 55); (5, 65); (6, 70); (7, 65); (7, 110); (9, 140). The objects accept the illustration of a proper cord that rises from left to direct among objects (0, 10) and (130, 9), after a time intermediate updirect expand of encircling 25. On the similar graph is a cord which rises from left to direct among objects (0, denying 5) and (130, 9). All coordinates are border.

This is the chasten exculpation.

Comment on the contrariety in the retrogradation cords when the stcolsettle object is removed.

A.

When the stcolsettle object is removed from the​ axioms, the retrogradation cord seems to be a worse fit for the objects on the scatterplot.

B.

When the stcolsettle object is removed from the​ axioms, the retrogradation cord seems to be a melioobjurgate fit for the objects on the scatterplot.

This is the chasten exculpation.

C.

When the stcolsettle object is removed from the​ axioms, the acception of the retrogradation cord changes from absolute to denying.

D.

When the stcolsettle object is removed from the​ axioms, the acception of the retrogradation cord changes from denying to absolute.

e. Reverberation the acception and catch of the retrogradation cord when the stcolsettle object is interjacent and teach what it shows. If the catch is not misapply to​ reverberation, teach why. Select the chasten precious beneath and satisfy in the exculpation boxes to accomplished your precious.

​(Round to one decimal fix as​ insufficiencyed.)

A.

The acception shows​ that, for each joined sunder​ accomplishedd, the intermediate reckon of semesters accomplishedd get acception by 

nothing

The catch shows that when the intermediate learner has accomplishedd cipher competency they get accept accomplishedd 

nothing

semesters.

B.

The acception shows​ that, for each joined semester​ accomplishedd, the intermediate reckon of competency accomplishedd get acception by 

nothing

It is not misapply to reverberation the catch consequently a learner cannot accomplished 

nothing

units.

C.

The acception shows​ that, for each joined semester​ accomplishedd, the intermediate reckon of competency accomplishedd get acception by 

12.2

The catch shows that when the intermediate learner has accomplishedd cipher semesters they get accept accomplishedd 

10.0

units.

Report the acception and catch of the retrogradation cord when the stcolsettle object is not interjacent and teach what it shows. If the catch is not misapply to​ reverberation, teach why. Select the chasten precious beneath and satisfy in the exculpation boxes to accomplished your precious.

​(Round to one decimal fix as​ insufficiencyed.)

A.

The acception shows that for each joined semester​ accomplishedd, the intermediate reckon of competency accomplishedd get acception by 

13.7

It is not misapply to reverberation the catch consequently a learner cannot accomplished 

denying 3.7

units.

B.

The acception shows that for each joined semester​ accomplishedd, the intermediate reckon of competency accomplishedd get acception by 

nothing

The catch shows that when the intermediate learner has accomplishedd cipher semesters they get accept accomplishedd 

nothing

units.

C.

The acception shows​ that, for each joined sunder​ accomplishedd, the intermediate reckon of semesters accomplishedd get acception by 

nothing

The catch shows that when the intermediate learner has accomplishedd cipher competency they get accept accomplishedd 

nothing

semesters.

Comment on the contrariety in the acception and catch of the retrogradation cord when the stcolsettle object is removed.

A.

When the stcolsettle object is​ removed, the catch abates and the acception acceptions.

This is the chasten exculpation.

B.

When the stcolsettle object is​ removed, the catch and the acception twain abate.

C.

When the stcolsettle object is​ removed, the catch acceptions and the acception abates.

D.

When the stcolsettle object is​ removed, the catch and the acception twain acception.

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

      

Assume that in a sociology​ dispose, the professor furnishs a midterm exam and a laproof exam. Assume that the society among midterm and laproof chargess is rectilinear. The epitome statistics are shown beneath.​ Also, r​ = 

0.75

and n​ = 

26

.

   

Mean

Standard   deviation

 

Midterm

75

 

8

 

Final

75

         

  

8

Complete competency​ (a) through​ (d) beneath.

a. Confront and reverberation the equation of the retrogradation cord to prognosticate the laproof exam charges from the midterm charges.

Predicted Final 

Gradeequals

18.75plus0.75

Midterm Grade

​(Type integers or decimals. Do not​ entire.) 

b. For a learner who gets 

51

on the​ midterm, prognosticate the laproof exam charges.

The prognosticateed laproof exam degree is 

57

.

​(Round to the undeviating integer as​ insufficiencyed.) 

c. Your exculpation to sunder​ (b) should be better than 

51

​Why?

A.

The​ learner's laproof charges should be better than his or her midterm charges consequently of retrogradation inside the 

meanlong dash

predictor 

variables far from the balance watch to effect tally variables sealr to the balance.

This is the chasten exculpation.

B.

The​ learner's laproof charges should be better than his or her midterm charges consequently of retrogradation inside the 

meanlong dash

scores 

watch to amend after a time numerous attempts.

C.

The​ learner's laproof charges should be better than his or her midterm charges consequently of 

extrapolationlong dash

the 

charges of 

51

is outplane the colsettle of the axioms.

D.

The​ learner's laproof charges should be better than his or her midterm charges consequently of 

extrapolationlong dash

the 

predicted charges is inferior than the midterm charges.

d. Consider a learner who gets a 100 on the midterm. Without doing any​ calculations, propound whether the prognosticateed charges on the laproof exam would be​ better, inferior, or the similar as 100.

The prognosticateed charges on the laproof exam would be 

inferior than 

100 consequently of 

retrogradation inside the balance. 

Assume that in a sociology​ dispose, the professor furnishs a midterm exam and a laproof exam. Assume that the society among midterm and laproof chargess is rectilinear. The epitome statistics are shown beneath.​ Also, r​ = 

0.75

and n​ = 

26

.

   

Mean

Standard   deviation

 

Midterm

75

 

8

 

Final

75

         

  

8

Complete competency​ (a) through​ (d) beneath.

a. Confront and reverberation the equation of the retrogradation cord to prognosticate the laproof exam charges from the midterm charges.

Predicted Final 

Gradeequals

18.75plus0.75

Midterm Grade

​(Type integers or decimals. Do not​ entire.) 

b. For a learner who gets 

51

on the​ midterm, prognosticate the laproof exam charges.

The prognosticateed laproof exam degree is 

57

.

​(Round to the undeviating integer as​ insufficiencyed.) 

c. Your exculpation to sunder​ (b) should be better than 

51

​Why?

A.

The​ learner's laproof charges should be better than his or her midterm charges consequently of retrogradation inside the 

meanlong dash

predictor 

variables far from the balance watch to effect tally variables sealr to the balance.

This is the chasten exculpation.

B.

The​ learner's laproof charges should be better than his or her midterm charges consequently of retrogradation inside the 

meanlong dash

scores 

watch to amend after a time numerous attempts.

C.

The​ learner's laproof charges should be better than his or her midterm charges consequently of 

extrapolationlong dash

the 

charges of 

51

is outplane the colsettle of the axioms.

D.

The​ learner's laproof charges should be better than his or her midterm charges consequently of 

extrapolationlong dash

the 

predicted charges is inferior than the midterm charges.

d. Consider a learner who gets a 100 on the midterm. Without doing any​ calculations, propound whether the prognosticateed charges on the laproof exam would be​ better, inferior, or the similar as 100.

The prognosticateed charges on the laproof exam would be 

inferior than 

100 consequently of 

retrogradation inside the balance. 

Assume that in a sociology​ dispose, the professor furnishs a midterm exam and a laproof exam. Assume that the society among midterm and laproof chargess is rectilinear. The epitome statistics are shown beneath.​ Also, r​ = 

0.75

and n​ = 

26

.

   

Mean

Standard   deviation

 

Midterm

75

 

8

 

Final

75

         

  

8

Complete competency​ (a) through​ (d) beneath.

a. Confront and reverberation the equation of the retrogradation cord to prognosticate the laproof exam charges from the midterm charges.

Predicted Final 

Gradeequals

18.75plus0.75

Midterm Grade

​(Type integers or decimals. Do not​ entire.) 

b. For a learner who gets 

51

on the​ midterm, prognosticate the laproof exam charges.

The prognosticateed laproof exam degree is 

57

.

​(Round to the undeviating integer as​ insufficiencyed.) 

c. Your exculpation to sunder​ (b) should be better than 

51

​Why?

A.

The​ learner's laproof charges should be better than his or her midterm charges consequently of retrogradation inside the 

meanlong dash

predictor 

variables far from the balance watch to effect tally variables sealr to the balance.

This is the chasten exculpation.

B.

The​ learner's laproof charges should be better than his or her midterm charges consequently of retrogradation inside the 

meanlong dash

scores 

watch to amend after a time numerous attempts.

C.

The​ learner's laproof charges should be better than his or her midterm charges consequently of 

extrapolationlong dash

the 

charges of 

51

is outplane the colsettle of the axioms.

D.

The​ learner's laproof charges should be better than his or her midterm charges consequently of 

extrapolationlong dash

the 

predicted charges is inferior than the midterm charges.

d. Consider a learner who gets a 100 on the midterm. Without doing any​ calculations, propound whether the prognosticateed charges on the laproof exam would be​ better, inferior, or the similar as 100.

The prognosticateed charges on the laproof exam would be 

inferior than 

100 consequently of 

retrogradation inside the balance. 

A​ propound's recidivism objurgate is 

21

​%. 

This balances encircling 

21

​% 

of released prisoners end up tail in prison​ (amid three​ years). Suppose two luckly clarified prisoners who accept been released are premeditated. Accomplished competency​ (a) through​ (c) beneath.

a. What is the likelihood that twain of them go tail to​ prison? What assumptions must you reach to calculate​ this?

The likelihood that twain of them go tail to prison is 

4.4

​%.

​(Round to one decimal fix as​ insufficiencyed.)

What assumptions must you reach to calculate​ this?

A.

The prisoners cannot be rebellious after a time notice to recidivism.

B.

The two prisoners cannot be clarified at the similar era.

C.

The prisoners must be rebellious after a time notice to recidivism.

This is the chasten exculpation.

D.

No assumptions are indispensable.

b. What is the likelihood that neither of them goes tail to​ prison?

The likelihood that neither of them goes tail to prison is 

62.4

​%.

​(Round to one decimal fix as​ insufficiencyed.)

c. What is the likelihood that at mediumest one goes tail to​ prison?

The likelihood that at mediumest one goes tail to prison is 

37.6

​%.

​(Round to one decimal fix as​ insufficiencyed.)

A​ propound's recidivism objurgate is 

21

​%. 

This balances encircling 

21

​% 

of released prisoners end up tail in prison​ (amid three​ years). Suppose two luckly clarified prisoners who accept been released are premeditated. Accomplished competency​ (a) through​ (c) beneath.

a. What is the likelihood that twain of them go tail to​ prison? What assumptions must you reach to calculate​ this?

The likelihood that twain of them go tail to prison is 

4.4

​%.

​(Round to one decimal fix as​ insufficiencyed.)

What assumptions must you reach to calculate​ this?

A.

The prisoners cannot be rebellious after a time notice to recidivism.

B.

The two prisoners cannot be clarified at the similar era.

C.

The prisoners must be rebellious after a time notice to recidivism.

This is the chasten exculpation.

D.

No assumptions are indispensable.

b. What is the likelihood that neither of them goes tail to​ prison?

The likelihood that neither of them goes tail to prison is 

62.4

​%.

​(Round to one decimal fix as​ insufficiencyed.)

c. What is the likelihood that at mediumest one goes tail to​ prison?

The likelihood that at mediumest one goes tail to prison is 

37.6

​%.

​(Round to one decimal fix as​ insufficiencyed.)

When a undeniable mark of thumbtack is​ tossed, the likelihood that it demesne tip up is 

30

​%, 

and the likelihood that it demesne tip down is 

70

​%. 

All practicable outcomes when two thumbtacks are tossed are listed. U balances the tip is up and D balances the tip is down. Accomplished competency​ (a) through​ (d) beneath.

  

UU

UD

DU

DD

a. What is the likelihood of getting precisely one​ Down?

​P(precisely one 

​Down)equals

0.42

​(Round to two decimal fixs as​ insufficiencyed.)

b. What is the likelihood of getting two​ Downs?

​P(two 

​Downs)equals

0.49

​(Round to two decimal fixs as​ insufficiencyed.)

c. What is the likelihood of at mediumest one Down​ (one or further​ Downs)?

​P(at mediumest one 

​Down)equals

0.91

​(Round to two decimal fixs as​ insufficiencyed.)

d. What is the likelihood of at most one Down​ (one or fewer​ Downs)?

​P(at most one 

​Down)equals

0.51

​(Round to two decimal fixs as​ insufficiencyed.)

  

incorrect, 5.2.25 

           

A poll asked crowd if gspherical was rate the financial siege. They as-well asked the​ respondent's gender. The ttelling shows a epitome of the tallys. If a idiosyncratic is separated luckly from the​ bunch, what is the likelihood of selecting a idiosyncratic who is manful or said Yes​ (or twain)?

   

Female

Male

All

 

No

54

42

96

      

Unsure

87

81

168

      

Yes

582

407

989

      

All

723

530

1253

     

What is the likelihood that the idiosyncratic from the ttelling is​ manful?

0.423

​(Round to three decimal fixs as​ insufficiencyed.)

What is the likelihood that the idiosyncratic said​ Yes?

0.789

​(Round to three decimal fixs as​ insufficiencyed.)

Are the occurrence substance manful and the occurrence speech Yes mutually​ restricted? Why or why​ not?

A.

The occurrences are not mutually restricted consequently the likelihood that a idiosyncratic said yes dedicated that they are manful is not the similar as the likelihood that a idiosyncratic is manful.

B.

The occurrences are not mutually restricted consequently a idiosyncratic separated could be manful and say Yes.

This is the chasten exculpation.

C.

The occurrences are not mutually restricted consequently the likelihood that a idiosyncratic is manful dedicated that they said yes is not the similar as the likelihood that a idiosyncratic said yes.

D.

The occurrences are mutually restricted consequently a idiosyncratic separated could be manful and say Yes.

What is the likelihood that a idiosyncratic is manful and said​ Yes?

0.325

​(Round to three decimal fixs as​ insufficiencyed.)

To confront the likelihood that a idiosyncratic is manful or said​ yes, why should you deduct the likelihood that a idiosyncratic is manful and said Yes from the sum as shown​ beneath?

​P(manful or 

​Yes)equals

​P(male)plus​P(Yes)minus

​P(male 

and​ Yes)

A.

For this restricted problem​ P(manful and​ Yes) should be deducted out.

B.

The occurrences are mutually restricted so​ P(Male and​ Yes) has to be deducted​ out, but the compute is regularly 0 in this occurrence.

C.

Because any manfuls who said yes would be counted twice if lawful​ P(Male) and​ P(Yes) were acquired.

This is the chasten exculpation.

D.

Because​ P(manful or​ Yes) is seeming for crowd who are manful or who said Yes but not twain.

Perform the calculation​ P(manful or 

​Yes)equals

​P(male)plus​P(Yes)minus

​P(male 

and​ Yes).

Suppose a luckized trial is conducted to proof whether sounding voicelessness interferes after a time memorizing reckons. Thither are 10 sundericipants. Each sundericipant should accept a​ 50% haphazard of substance specifyed to the trialal bunch​ (memorizes reckons time voicelessness​ plays) and a​ 50% haphazard of substance specifyed to the curb bunch​ (memorizes reckons after a time no​ voicelessness). Let the digits​ 0, 1,​ 2, 3, and 4 peculiarate enactment to the trialal bunch​ (music) and the digits​ 5, 6,​ 7, 8, and 9 peculiarate enactment to the curb bunch. Use the luck reckon ttelling to pretend the 10 enactments. Begin after a time the original digit in the third row of the luck reckon consultation. Accomplished competency​ (a) through​ (c) beneath.

LOADING...

Click the icon to end the luck reckon consultation.

  

a.

Write the continuity of 10 luck   digits. For each reckon transcribe M beneath it if it peculiarates a sundericipant   randomized to the voicelessness bunch and C if it peculiarates a learner luckized to   the curb bunch.

List the reckons in disposeify as seen in the luck reckon ttelling preparation after a time the original digit in the third row.

The continuity is 

3

​,6​,3​,9​,4​,8​,7​,7​,3​,0

.

Write the continuity sundericipant enactment. Transcribe M if it peculiarates a sundericipant luckized to the voicelessness bunch and C if it peculiarates a learner luckized to the curb bunch.

The enactment continuity is 

​, 

​, 

​, 

​, 

​, 

​, 

​, 

​, 

​, 

.

b. What percentage of the 10 sundericipants were specifyed to the voicelessness​ bunch?

50

​%

  

c. 

Would it be misapply to specify   all the level reckons​ (0, 2,​ 4, 6,​ 8) to the voicelessness bunch and all the odd   numbers​ (1, 3,​ 5, 7,​ 9) to the curb​ bunch? Why or why​ not?

A.

It would not be misapply. Any luckized trial must specify sundericipants as a arrest of luck reckons. 

B.

It would not be misapply. The similar reckon of sundericipants would not be specifyed to each bunch.

C.

It would be misapply. As half the reckons are level and half the reckons are odd each sundericipant would tranquil accept a​ 50% haphazard to be specifyed to each bunch.

This is the chasten exculpation.

D.

It would not be misapply. The reckons do not all accept the similar likelihood of occurring.

Suppose a luckized trial is conducted to proof whether sounding voicelessness interferes after a time memorizing reckons. Thither are 10 sundericipants. Each sundericipant should accept a​ 50% haphazard of substance specifyed to the trialal bunch​ (memorizes reckons time voicelessness​ plays) and a​ 50% haphazard of substance specifyed to the curb bunch​ (memorizes reckons after a time no​ voicelessness). Let the digits​ 0, 1,​ 2, 3, and 4 peculiarate enactment to the trialal bunch​ (music) and the digits​ 5, 6,​ 7, 8, and 9 peculiarate enactment to the curb bunch. Use the luck reckon ttelling to pretend the 10 enactments. Begin after a time the original digit in the third row of the luck reckon consultation. Accomplished competency​ (a) through​ (c) beneath.

LOADING...

Click the icon to end the luck reckon consultation.

  

a.

Write the continuity of 10 luck   digits. For each reckon transcribe M beneath it if it peculiarates a sundericipant   randomized to the voicelessness bunch and C if it peculiarates a learner luckized to   the curb bunch.

List the reckons in disposeify as seen in the luck reckon ttelling preparation after a time the original digit in the third row.

The continuity is 

3

​,6​,3​,9​,4​,8​,7​,7​,3​,0

.

Write the continuity sundericipant enactment. Transcribe M if it peculiarates a sundericipant luckized to the voicelessness bunch and C if it peculiarates a learner luckized to the curb bunch.

The enactment continuity is 

​, 

​, 

​, 

​, 

​, 

​, 

​, 

​, 

​, 

.

b. What percentage of the 10 sundericipants were specifyed to the voicelessness​ bunch?

50

​%

  

c. 

Would it be misapply to specify   all the level reckons​ (0, 2,​ 4, 6,​ 8) to the voicelessness bunch and all the odd   numbers​ (1, 3,​ 5, 7,​ 9) to the curb​ bunch? Why or why​ not?

A.

It would not be misapply. Any luckized trial must specify sundericipants as a arrest of luck reckons. 

B.

It would not be misapply. The similar reckon of sundericipants would not be specifyed to each bunch.

C.

It would be misapply. As half the reckons are level and half the reckons are odd each sundericipant would tranquil accept a​ 50% haphazard to be specifyed to each bunch.

This is the chasten exculpation.

D.

It would not be misapply. The reckons do not all accept the similar likelihood of occurring.

According to axioms for a​ population, 3-year-old boys accept a balance crisis of 

38

inches and a beard irregularity of 

2

inches. Assume the arrangement is almost Normal. Accomplished competency a and 

b.

  

a. nbsp

Find the percentile appraise for a crisis of 

34

  

inches for a​ 3-year-old boy.

A crisis of 

34

inches corresponds to the 

2

nd 

percentile.

​(Round down to the undeviating percentile as​ insufficiencyed.)

  

b. nbsp

If this​ 3-year-old boy grows up to be a man after a time a crisis at the similar​ percentile, what get his crisis​ be? Use a population balance of 

70

inches and a population beard irregularity of 

3

  

inches.

His crisis get be 

64.0

inches.

​(Round to the undeviating tenth as​ insufficiencyed.)

  

incorrect, 6.2.45 

           

The balance superfluous charges on a beardized proof for female​ ground-bound exalted gspherical seniors was 

600

The chargess are almost Normally nice after a time a population beard irregularity of 

50

A erudition committee wants to furnish awards to​ ground-bound women who charges at the 

96

th 

percentile or aggravatehead on the proof. What charges does an applicant​ insufficiency? Accomplished competency​ (a) through​ (g) beneath.

Click hither to end page 1 of the Flag Normal Table. 

LOADING...

Click hither to end page 2 of the Flag Normal Table. 

LOADING...

a. Get the proof charges be aggravatehead the balance or beneath​ it? Explain.

A.

The proof charges get be beneath the balance consequently the 

96

th 

percentile peculiarates the proof charges that is better than 

96

​% 

of the other chargess.

B.

The proof charges get be beneath the balance consequently the 

96

th 

percentile peculiarates the proof charges that is inferior than 

96

​% 

of the other chargess.

C.

The proof charges get be aggravatehead the balance consequently the 

96

th 

percentile peculiarates the proof charges that is inferior than 

96

​% 

of the other chargess.

D.

The proof charges get be aggravatehead the balance consequently the 

96

th 

percentile peculiarates the proof charges that is better than 

96

​% 

of the other chargess.

This is the chasten exculpation.

  

b. Dedicate the flexion after a time integer​   z-scores. The tick marks peculiarate the pose of integer​ z-scores from 

minus

      

to 3.

A graph has a dull axis   labeled after a time 7 levelly spaced ticks and a updirect axis dedicateed Density. A   well-proportioned bell-shaped flexion is inhalen such that the ends of the flexion unite   the dull axis nigh the original and seventh ticks, and the exaltedest object of   the flexion occurs at the impureth tick. The original tick aligns after a time the original   exculpation box, the prevent tick aligns after a time the prevent exculpation box, the third tick   aligns after a time the third exculpation box, the impureth tick aligns after a time an axis dedicate   of 0 and an joined dedicate of 600, the fifth tick aligns after a time the impureth   exculpation box, the sixth tick aligns after a time the fifth exculpation box, and the seventh   tick aligns after a time an axis dedicate of 3 and an joined dedicate of 750. 

                                 

denying 3

             

denying 2

denying 1

  

0

1

2

  

3

      

600

    

750

    

c. The 

96

th 

percentile has 

96

​% 

of the area to the left consequently it is better than 

96

​% 

of the chargess. The ttelling aggravatehead furnishs the areas to the left of​ z-scores. Therefore, we seem for 

0.9600

in the toward sbeneath of the consultation. Use the Normal ttelling dedicated aggravatehead to settle the area sealst to 

0.9600

Then reverberation the​ z-charges for that area.

zequals

1.75

​(Round to two decimal fixs as​ insufficiencyed.)

d. Add that​ z-charges to the​ portray, and inhale a updirect cord aggravatehead it through the flexion. Shelter the area corresponding to the axioms computes beneath the 

96

th 

percentile. Select the chasten precious beneath and satisfy in the exculpation box to accomplished your precious.

​(Type an integer or a​ decimal.)

A.

A graph has a dull axis dedicateed after a time 7 levelly spaced ticks. A well-proportioned bell-shaped flexion is inhalen such that the ends of the flexion unite the dull axis nigh the original and seventh ticks, and the exaltedest object of the flexion occurs at the impureth tick. The original five ticks, from left to direct, align after a time the aftercited axis dedicates: denying 3, denying 2, denying 1, 0, and 1; the sixth tick is not dedicateed, and the seventh tick aligns after a time an axis dedicate of 3. To the nigh left of the sixth tick is a updirect cord member spreading from the dull axis to the flexion. This updirect cord member separates a secret clime on its left and a non-secret clime on its direct. An exculpation box is settled lawful beneath the updirect cord member. 

  

minus

 

3

minus

      

  

2

minus

  

1

0

1

1.75

  

3

B.

A graph has a dull axis dedicateed after a time 7 levelly spaced ticks. A well-proportioned bell-shaped flexion is inhalen such that the ends of the flexion unite the dull axis nigh the original and seventh ticks, and the exaltedest object of the flexion occurs at the impureth tick. The original five ticks, from left to direct, align after a time the aftercited axis dedicates: denying 3, denying 2, denying 1, 0, and 1; the sixth tick is not dedicateed, and the seventh tick aligns after a time an axis dedicate of 3. To the nigh left of the sixth tick is a updirect cord member spreading from the dull axis to the flexion. This updirect cord member separates a non-secret clime on its left and a secret clime on its direct. An exculpation box is settled lawful beneath the updirect cord member. 

  

minus

 

3

minus

      

  

2

minus

  

1

0

1

nothing

  

3

e. Confront the proof charges that corresponds to the​ z-score. The charges should be z beard irregularitys aggravatehead the​ balance, so 

xequals

mupluszsigma

.

xequals

688

​(Round to the undeviating integer as​ insufficiencyed.)

f. Add the proof charges on the portray. 

Select the chasten precious beneath and satisfy in the exculpation box to accomplished your precious.

​(Round to the undeviating integer as​ insufficiencyed.)

A.

A graph has a dull axis dedicateed after a time 7 levelly spaced ticks. A well-proportioned bell-shaped flexion is inhalen such that the ends of the flexion unite the dull axis nigh the original and seventh ticks, and the exaltedest object of the flexion occurs at the impureth tick. The impureth tick has axis dedicate 600 and the seventh tick has axis dedicate 750; none of the other ticks accept dedicates. To the nigh left of the sixth tick is a updirect cord member spreading from the dull axis to the flexion. This updirect cord member separates a secret clime on its left and a non-secret clime on its direct. An exculpation box is settled lawful beneath the updirect cord member. 

     

600

  

688

750

B.

A graph has a dull axis dedicateed after a time 7 levelly spaced ticks. A well-proportioned bell-shaped flexion is inhalen such that the ends of the flexion unite the dull axis nigh the original and seventh ticks, and the exaltedest object of the flexion occurs at the impureth tick. The impureth tick has axis dedicate 600 and the seventh tick has axis dedicate 750; none of the other ticks accept dedicates. To the nigh left of the sixth tick is a updirect cord member spreading from the dull axis to the flexion. This updirect cord member separates a non-secret clime on its left and a secret clime on its direct. An exculpation box is settled lawful beneath the updirect cord member. 

     

600

  

nothing

750

g.​ Finally, transcribe a decree stating what you endow.

An applicant would insufficiency a charges of 

at mediumest 

688

to be in the 

96

th 

percentile or aggravatehead.

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

       

incorrect, 6.2.38 

              

Assume for this scrutiny that ground​ women's crisiss are almost Normally nice after a time a balance of 

64.6

inches and a beard irregularity of 

2.4

inches. Accomplished competency​ (a) through​ (d) beneath.

LOADING...

Click the icon to end a axioms ttelling from a illustration of 

129

gspherical women.

a. Confront the percentage of women who should accept crisiss of 

63.5

inches or hither. Inhale a Normal flexion. Choose the chasten graph beneath.

A.

0-33    z-scoreDensity

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate denying 0.46. The area beneath the flexion to the left of the updirect cord is secret.

This is the chasten exculpation.

B.

0-33    z-scoreDensity

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate 59 comma 60 comma 61 comma 62 comma 63 comma 64 comma 65 comma 66 comma 67 comma 68 comma 69 comma 70 comma 71 comma 72. The area beneath the flexion to the left of the updirect cord is secret.

C.

0-33    z-scoreDensity

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate denying 0.46. The area beneath the flexion to the direct of the updirect cord is secret.

D.

0-33    z-scoreDensity

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate 0.46. The area beneath the flexion to the direct of the updirect cord is secret.

The percentage of women who should accept crisiss of 

63.5

inches or hither is 

32.3

​%.

​(Type an integer or decimal entireed to one decimal fix as​ insufficiencyed.)

b. In a illustration of 

129

​women, according to the likelihood obtained in sunder​ (a), how manifold should accept crisiss of 

63.5

inches or​ hither?

In a illustration of 

129

​women, 

41.71

should accept crisiss of 

63.5

inches or hither.

​(Type an integer or decimal entireed to two decimal fixs as​ insufficiencyed.)

c. The established ttelling shows the frequencies of crisiss for a illustration of 

129

women. Count the women who reply to accept crisiss of 

63

inches or hither by seeming at the consultation. 

The reckon of women in the illustration that accept a crisis of 

63

inches or hither is 

41

.

​(Type a whole​ reckon.) 

d. Are the exculpations to competency b and c the similar or​ irrelative? Explain.

A.

The exculpations are very irrelative. This arrangement is a amiable-tempered-tempered way for this illustration.

B.

The exculpations are very seal. This arrangement is a amiable-tempered-tempered way for this illustration.

This is the chasten exculpation.

C.

The exculpations are very seal. This arrangement is not a amiable-tempered-tempered way for this illustration.

D.

The exculpations are very irrelative. This arrangement is not a amiable-tempered-tempered way for this illustration.

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

      

You​ exculpationed: 

nothing

  

incorrect, 6.2.32 

           

The arrangement of red order cell counts is irrelative for 

men

and 

women

in a undeniable population. For​ twain, the arrangement is almost Normal. For 

men

​, 

the intermediate​ 95% colsettle from 

4.6

to 

5.8

million cells per​ microliter, and for 

women

​, 

the intermediate​ 95% accept red order cell counts among 

3.6

and 

4.8

million cells per microliter. Accomplished competency​ (a) and​ (b) beneath.

a. What is the balance for the 

women

​? 

Explain your rationalistic.

​(Round to two decimal fixs as​ insufficiencyed.)

A.

The balance is 

nothing

million. Since the rule of the Normal arrangement is similar to its​ balance, the balance is similar to the interspace among the designation computes for the intermediate​ 95%.

B.

The balance is 

nothing

million. Since the Normal arrangement is symmetric encircling its​ balance, the balance is the inferior of the designation computes for the intermediate​ 95%.

C.

The balance is 

4.20

million. Since the Normal arrangement is symmetric encircling its​ balance, the balance is direct in the​ intermediate, which is the intermediate of the designation computes for the intermediate​ 95%.

D.

The balance is 

nothing

million. Since the rule of the Normal arrangement is similar to its​ balance, the balance is the better of the designation computes for the intermediate​ 95%.

b. Confront the beard irregularity for the 

women

Explain your rationalistic.

The beard irregularity is 

0.31

million. The Empirical Rule propounds that encircling​ 95% of the axioms descend after a timein 

two 

standard​ irregularity(s) of the balance. The intermediate​ 95% of computes spans 

four 

standard​ irregularity(s). The beard irregularity is endow by dividing the colsettle of the intermediate​ 95% by 

4.00

.

​(Round to two decimal fixs as​ insufficiencyed.)

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

       

incorrect, 6.2.31 

              

The arrangement of red order cell counts is irrelative for 

men

and 

women

in a undeniable population. For​ twain, the arrangement is almost Normal. For 

men

​, 

the intermediate​ 95% colsettle from 

4.7

to 

6.3

million cells per​ microliter, and for 

women

​, 

the intermediate​ 95% accept red order cell counts among 

3.7

and 

4.5

million cells per microliter. Accomplished competency​ (a) and​ (b) beneath.

a. What is the balance for the 

men

​? 

Explain your rationalistic. Select the chasten precious beneath and satisfy in the exculpation box to accomplished your precious.

​(Round to two decimal fixs as​ insufficiencyed.)

A.

The balance is 

nothing

million. Since the rule of the Normal arrangement is similar to its​ balance, the balance is similar to the interspace among the designation computes for the intermediate​ 95%.

B.

The balance is 

nothing

million. Since the Normal arrangement is symmetric encircling its​ balance, the balance is the inferior of the designation computes for the intermediate​ 95%.

C.

The balance is 

nothing

million. Since the rule of the Normal arrangement is similar to its​ balance, the balance is the better of the designation computes for the intermediate​ 95%.

D.

The balance is 

5.50

million. Since the Normal arrangement is symmetric encircling its​ balance, the balance is direct in the​ intermediate, which is the intermediate of the designation computes for the intermediate​ 95%.

b. Confront the beard irregularity for the 

men

Explain your rationalistic.

The beard irregularity is 

0.41

million. The Empirical Rule propounds that encircling​ 95% of the axioms descend after a timein 

two 

standard​ irregularity(s) of the balance. The intermediate​ 95% of computes spans 

four 

standard​ irregularity(s). The beard irregularity is endow by dividing the colsettle of the intermediate​ 95% by 

4.00

.

​(Round to two decimal fixs as​ insufficiencyed.)

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

       

incorrect, 6.2.25 

              

According to the​ axioms, the balance superfluous charges on a beardized proof for female​ ground-bound exalted gspherical seniors was 

500

The chargess are almost Normally nice after a time a population beard irregularity of 

100

What percentage of the female​ ground-bound exalted gspherical seniors had chargess aggravatehead 

628

​? 

Answer this scrutiny by completing competency​ (a) through​ (g) beneath.

Click hither to end page 1 of the Flag Normal Table. 

LOADING...

Click hither to end page 2 of the Flag Normal Table. 

LOADING...

a. Confront the​ z-charges for a beardized proof charges of 

628

zequals

1.28

​(Type an integer or a decimal. Do not​ entire.)

  

b. Dedicate the Normal flexion after a time   integer​ z-scores. The tick marks peculiarate the pose of integer​ z-scores   from 

minus

to 3. Why is the proof charges of 

500

directly aggravatehead the​ z-charges of​ 0?

A.

Because the balance is similar to the desired proof charges.

B.

Because a​ z-charges of 0 corresponds to the desired proof charges.

C.

Because the balance corresponds to a​ z-charges of 0.

This is the chasten exculpation.

  

D.

Because a​ z-charges of 0   corresponds to the population beard irregularity.

  

0-33    Density500

A coordinate plan has a   dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1   and a updirect axis dedicateed “Density.” A Normal flexion spreads among the   left and direct interests of the graph after a time a peak at dull coordinate 0.   Above the dull coordinate 0 is the dedicate "500."

c. Portray a vision of the flexion after a time beardized proof charges dedicates on the dull axis.

A.

0-33    Density

font magnitude abated by 3 200

font magnitude abated by 3 300

font magnitude abated by 3 400

font magnitude abated by 3 500

font magnitude abated by 3 600

font magnitude abated by 3 700

font magnitude abated by 3 800

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. Overhead the dull axis dedicates is a prevent row of dedicates that align after a time the dull axis dedicates as follows: denying 3, 200; denying 2, 300; denying 1, 400; 0, 500; 1, 600; 2, 700; 3, 800. The intermediate dedicate, 500, is exaltedlighted.

This is the chasten exculpation.

B.

0-33    Density

font magnitude abated by 3 denying 100

font magnitude abated by 3 100

font magnitude abated by 3 300

font magnitude abated by 3 500

font magnitude abated by 3 700

font magnitude abated by 3 900

font magnitude abated by 3 1100

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. Overhead the dull axis dedicates is a prevent row of dedicates that align after a time the dull axis dedicates as follows: denying 3, denying 100; denying 2, 100; denying 1, 300; 0, 500; 1, 700; 2, 900; 3, 1100. The intermediate dedicate, 500, is exaltedlighted.

C.

0-33    Density

font magnitude abated by 3 350

font magnitude abated by 3 400

font magnitude abated by 3 450

font magnitude abated by 3 500

font magnitude abated by 3 550

font magnitude abated by 3 600

font magnitude abated by 3 650

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. Overhead the dull axis dedicates is a prevent row of dedicates that align after a time the dull axis dedicates as follows: denying 3, 350; denying 2, 400; denying 1, 450; 0, 500; 1, 550; 2, 600; 3, 650. The intermediate dedicate, 500, is exaltedlighted.

d. Inhale a updirect cord through the flexion at the dregs of 

628

Shade the area that peculiarates the percentage of learners that had chargess aggravatehead 

628

.

A.

0-33    Density

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate denying 1.3. The area beneath the flexion to the direct of the updirect cord is secret.

B.

0-33    Density

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate 1.3. The area beneath the flexion to the direct of the updirect cord is secret.

This is the chasten exculpation.

C.

0-33    Density

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate 1.3. The area beneath the flexion to the left of the updirect cord is secret.

D.

0-33    Density

A coordinate plan has a dull axis dedicateed from hither than denying 3 to 3 plus in intervals of 1 and a updirect axis dedicateed “Density.” A Normal flexion spreads among the left and direct interests of the graph after a time a peak at dull coordinate 0. A updirect cord member, present from the dull axis to the flexion, is plotted at bordain dull coordinate denying 1.3. The area beneath the flexion to the left of the updirect cord is secret.

e. Use the Normal ttelling to confront the area to the left of the​ z-charges that was obtained from a beardized proof charges of 

628

.

The area to the left of the​ z-charges is 

0.8997

​(Round to impure decimal fixs as​ insufficiencyed.) 

f. Confront the area to the direct of the​ z-score.

The area to the direct of the​ z-charges is 

0.1003

​(Round to impure decimal fixs as​ insufficiencyed.) 

g. What percentage of the female​ ground-bound exalted gspherical seniors had chargess aggravatehead 

628

​?

Approximately 

10.03

​% 

of the female​ ground-bound exalted gspherical seniors had chargess aggravatehead 

628

.

​(Round to two decimal fixs as​ insufficiencyed.)

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

      

You​ exculpationed: 

nothing

  

incorrect, 6.2.21 

           

Use technology to confront the indicated area beneath the beard Normal flexion. Include an misapplyly dedicateed portray of the Normal flexion and shelter the misapply clime.

a. Confront the likelihood that a​ z-charges get be 

0.45

or hither.

b. Confront the likelihood that a​ z-charges get be 

0.45

or further.

c. Confront the likelihood that a​ z-charges get be among 

denying 1.5

and 

denying 1.05

.

a. Which graph beneath shows the likelihood that a​ z-charges is 

0.45

or​ hither?

A.

-0.450.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the left and direct interests of the graph, two updirect cord members after a time appertaining dedicateed dull coordinates denying 0.45 and 0.45 exwatch from the dull axis to the flexion. The area beneath the flexion to the left of the member at denying 0.45 and the area beneath the flexion to the direct of the member at 0.45 are secret.

B.

0.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the graph’s direct interest, a updirect cord member after a time dedicateed dull coordinate 0.45 spreads from the dull axis to the flexion. The area beneath the flexion and to the left of the updirect cord member is secret.

This is the chasten exculpation.

C.

0.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the graph’s direct interest, a updirect cord member after a time dedicateed dull coordinate 0.45 spreads from the dull axis to the flexion. The area beneath the flexion and to the direct of the updirect cord member is secret.

D.

-0.450.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the left and direct interests of the graph, two updirect cord members after a time appertaining dedicateed dull coordinates denying 0.45 and 0.45 exwatch from the dull axis to the flexion. The area beneath the flexion among the member at denying 0.45 and the member at 0.45 is secret.

The likelihood that a​ z-charges get be 

0.45

or hither is 

0.6736

​(Round to impure decimal fixs as​ insufficiencyed.)

b. Which graph beneath shows the likelihood that a​ z-charges is 

0.45

or​ further?

A.

-0.450.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the left and direct interests of the graph, two updirect cord members after a time appertaining dedicateed dull coordinates denying 0.45 and 0.45 exwatch from the dull axis to the flexion. The area beneath the flexion among the member at denying 0.45 and the member at 0.45 is secret.

B.

0.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the graph’s direct interest, a updirect cord member after a time dedicateed dull coordinate 0.45 spreads from the dull axis to the flexion. The area beneath the flexion and to the left of the updirect cord member is secret.

C.

-0.450.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the left and direct interests of the graph, two updirect cord members after a time appertaining dedicateed dull coordinates denying 0.45 and 0.45 exwatch from the dull axis to the flexion. The area beneath the flexion to the left of the member at denying 0.45 and the area beneath the flexion to the direct of the member at 0.45 are secret.

D.

0.45

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 40% of the way from the graph’s direct interest, a updirect cord member after a time dedicateed dull coordinate 0.45 spreads from the dull axis to the flexion. The area beneath the flexion and to the direct of the updirect cord member is secret.

This is the chasten exculpation.

The likelihood that a​ z-charges get be 

0.45

or further is 

0.3264

​(Round to impure decimal fixs as​ insufficiencyed.)

c. Which graph beneath shows the likelihood that a​ z-charges is among 

denying 1.5

and 

denying 1.05

​?

A.

-1.5-1.05

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 25% and 30% of the way from the graph’s left interest, two updirect cord members after a time appertaining dedicateed dull coordinates denying 1.5 and denying 1.05 exwatch from the dull axis to the flexion. The area beneath the flexion to the left of the member at denying 1.5 and the area beneath the flexion to the direct of the member at denying 1.05 are secret.

B.

-1.5-1.05

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 25% and 30% of the way from the graph’s left interest, two updirect cord members after a time appertaining dedicateed dull coordinates denying 1.5 and denying 1.05 exwatch from the dull axis to the flexion. The area to beneath the flexion to the direct of the member at denying 1.5 is secret.

C.

-1.5-1.05

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 25% and 30% of the way from the graph’s left interest, two updirect cord members after a time appertaining dedicateed dull coordinates denying 1.5 and denying 1.05 exwatch from the dull axis to the flexion. The area beneath the flexion among the member at denying 1.5 and the member at denying 1.05 is secret.

This is the chasten exculpation.

D.

-1.5-1.05

A graph contains a Normal flexion, plotted aggravate a dull axis, which spreads among the left and direct interests of the graph and has a peak at the dull disposition. Almost 25% and 30% of the way from the graph’s left interest, two updirect cord members after a time appertaining dedicateed dull coordinates denying 1.5 and denying 1.05 exwatch from the dull axis to the flexion. The area beneath the flexion to the left of the member at denying 1.05 is secret.

The likelihood that a​ z-charges get be among 

denying 1.5

and 

denying 1.05

is 

0.0801

.

​(Round to impure decimal fixs as​ insufficiencyed.)

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

       

incorrect, 6.1-8 

              

  

Determine whether the aftercited is   a likelihood arrangement. If​ not, establish the fitness that is not   satisfied.

If a idiosyncratic is luckly clarified   from a undeniable​ town, the likelihood arrangement for the​ reckon, x, of   siblings is as pictorial in the appertaining consultation.

Start 7 By 2 Ttelling 1st Row 1st   Column x 2nd Column Upper P left parenthesis x direct parenthesis 2nd Row 1st   Column 0 2nd Column 0.24 3rd Row 1st Column 1 2nd Column 0.27 4st Row 1st   Column 2 2nd Column 0.25 5st Row 1st Column 3 2nd Column 0.13 6st Row 1st   Column 4 2nd Column 0.05 7st Row 1st Column 5 2nd Column 0.03 EndTable

                 

    

    

    

    

    

A.

Yes

B.

No

This is the chasten exculpation.

C.

​Can't be resolute after a time the dedicated information

Question is accomplished. Tap on the red indicators to see inchasten exculpations.

      

You​ exculpationed: 

nothing

  

incorrect, 6.2.55 

           

The intermediate source importance of domiciliary cats is encircling 

3

ounces. Assume that the arrangement of source importances is Normal after a time a beard irregularity of 

0.4

ounce.

a. Confront the source importance of cats at the 

90

th 

percentile.

b. Confront the source importance of cats at the 

10

th 

percentile.

a. The source importance of cats at the 

90

th 

percentile is 

3.51

ounces.

​(Round to two decimal fixs as​ insufficiencyed.)

b. The source importance of cats at the 

10

th 

percentile is 

2.49

ounces.

​(Round to two decimal fixs as​ insufficiencyed.)

According to axioms for a​ population, 3-year-old boys accept a balance crisis of 

38

inches and a beard irregularity of 

2

inches. Assume the arrangement is almost Normal. Accomplished competency a and 

b.

  

a. nbsp

Find the percentile appraise for a crisis of 

42

  

inches for a​ 3-year-old boy.

A crisis of 

42

inches corresponds to the 

97

th 

percentile.

​(Round down to the undeviating percentile as​ insufficiencyed.)

  

b. nbsp

If this​ 3-year-old boy grows up to be a man after a time a crisis at the similar​ percentile, what get his crisis​ be? Use a population balance of 

70

inches and a population beard irregularity of 

3

  

inches.

His crisis get be 

76.0

inches.

​(Round to the undeviating tenth as​ insufficiencyed.)

Assume gspherical women accept crisiss after a time the aftercited arrangement​ (inches): 

​N(65

​, 

1.6

​). 

Complete competency​ (a) through​ (d) beneath.

a. Confront the crisis at the 75th percentile.

The 75th percentile is 

66.1

.

​(Round to one decimal fix as​ insufficiencyed.) 

b. Confront the crisis at the 25th percentile.

The 25th percentile is 

63.9

.

​(Round to one decimal fix as​ insufficiencyed.) 

c. Confront the interquartile colsettle for crisiss.

The interquartile colsettle is 

2.2

.

​(Round to one decimal fix as​ insufficiencyed.) 

d. Is the interquartile colsettle vastr or smaller than the beard​ irregularity?

The interquartile colsettle is 

larger 

than the beard irregularity.

Assume gspherical women accept crisiss after a time the aftercited arrangement​ (inches): 

​N(65

​, 

1.6

​). 

Complete competency​ (a) through​ (d) beneath.

a. Confront the crisis at the 75th percentile.

The 75th percentile is 

66.1

.

​(Round to one decimal fix as​ insufficiencyed.) 

b. Confront the crisis at the 25th percentile.

The 25th percentile is 

63.9

.

​(Round to one decimal fix as​ insufficiencyed.) 

c. Confront the interquartile colsettle for crisiss.

The interquartile colsettle is 

2.2

.

​(Round to one decimal fix as​ insufficiencyed.) 

d. Is the interquartile colsettle vastr or smaller than the beard​ irregularity?

The interquartile colsettle is 

larger 

than the beard irregularity.

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