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Note from the author:

Precalculs Statistics Unit Review

1

1 pt

What is the mean of the data: 245, 167, 203, 146, 288, 289, 231, 105, 98

A. 288

B. 203

C. 196.9

D. None of the above

2

1 pt

What is the median of the data: 245, 167, 203, 146, 288, 289, 231, 105, 98

A. 288

B. 203

C. 196.9

D. None of the above

3

1 pt

What is the mode of the data: 245, 167, 203, 146, 288, 289, 231, 105, 98

A. 288

B. 203

C. 196.9

D. None of the above

4

1 pt

What is the standard deviation for the following data set:

245, 167, 203, 146, 288, 289, 231, 105, 98

A. 4667.43

B. 42006.9

C. 64.5

D. 68.3

5

1 pt

True or False: The z-score for 24.1, in a distribution whose mean is 20.6 and standard deviation is 2.8 is equal to -1.25

True

False

6

1 pt

True or False: The z-score for 130, in a distribution whose mean is 100 and standard deviation is 15 is equal to -2.

True

False

7

1 pt

What is the sum of squared deviations for the following data set:

10, 18, 12, 15, 16, 13

8

1 pt

What is the standard deviation for the following data set:

10, 18, 12, 15, 16, 13

9

1 pt

Using box plots, determine whether this data set contains any outliers. What are the outliers (if any)? :

21, 23, 33, 49, 25, 24

10

1 pt

Using box plots, determine whether this data set contains any outliers. What are the outliers?:

10.2, 14.1, 14.4, 14.4, 14.4, 14.5, 14.5, 14.6, 14.7, 14.7, 14.7, 14.9, 15.1, 15.9, 16.4

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