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AP Stats Review Ch2

Authored by Kris Bennett

Mathematics

10th - 12th Grade

CCSS covered

Used 1+ times

AP Stats Review Ch2
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9 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suppose the average score on a national exam was 500 with a standard deviation of 100. If each score is increased by 20 points and then increased by 10%, what are the new mean and standard deviation?

mean = 570, SD = 100

mean = 570, SD = 110

mean = 572, SD = 100

mean = 572, SD = 110

mean = 572, SD = 132

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suppose the scores of an exam have a mean of 75 and a standard deviation of 8. If one of the students has a test result with a z-score of -1.5 and a second students has a result with a z-score of 2.0, how many points higher was the second student's test result?

3.5

4

12

16

28

Tags

CCSS.HSS.ID.A.4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Assuming that heights of professional athletes follow an approximate Normal distribution, arrange in ascending order:

I. height with z-score equal to 1

II. height with percentile rank of 80th percentile

III. height at third quartile

I, II, III

I, III, II

II, I, III

III, I, II

III, II, I

Tags

CCSS.HSS.ID.A.4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of following statements are true?

I. All symmetric histograms have a single peak

II. All symmetric bell-shaped curves are Normal

III. All Normal curves are bell-shaped and symmetric

I

II

III

I and II

None of the above gives the complete set of true responses

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student's score on exam 1 was in the 64th percentile. His score falls

between the minimum and first quartile

between first quartile and median

between median and third quartile

between third quartile and maximum

at the mean

Tags

CCSS.6.SP.B.5C

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Score on the ACT exam are approximately Normal with a mean of 18 and a standard deviation of 6. If you have a z-score of -0.7, then what is your actual score?

4.2

13.8

22.2

-4.2

17.3

Tags

CCSS.HSS.ID.A.4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

George has an average bowling score of 180, in a league with a mean of 150 and a standard deviation of 20. Bill has an average 190, in a league with a mean of 160 and standard deviation of 15. Who ranks higher in THEIR league?

Bill because his average is higher

Bill because his z-score is higher

Bill and George are even since they are both 30 pins above the average in their league

George because his z-score is higher

George because his league has a higher standard deviation.

Tags

CCSS.HSS.ID.A.4

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