1. If the mean of a set of data is 23.00, and 12.60 has a z-score of –1.30, then the standard deviation must be:

A)  4.00    B)  32.00    C)  64.00    D)  8.00

2. What is the median of the following numbers?

3, 5, 8, 10, 14

A)  9    B)  5    C)  7    D)  8

4. Which of the following is the correct mean for the given data?

7, 8, 13, 9, 10, 11 

A)  9.7     B)  9.67     C)  9     D)  10 

5. The minimum of the set of numbers {–3, 17, -5, 11, 5} is

A)  20    B)  10    C)  –3    D)  17

6. The maximum of the set of numbers {8, 18, -5, 11, 5} is

A)  15    B)  -5    C)  18    D)  10.5

7. If the mean of a set of data is 23.00, and 30.50 has a z-score of 0.75, then the standard deviation must be:

A)  100.00    B)  5.00    C)  50.00    D)  10.00

8. If the five number summary for a set of data is 0, 3, 6, 7, and 16, then the mean of this set of data is

A)  6    B)  there is insufficient information to calculate the mean    C)  8    D)  5

10. Find the median for the following data.

6,   7,   4,   5,   3,   7,   4 

A)  5     B)  3     C)  7     D)  4 

11. All the values in a dataset are between 9 and 11, except for one value of 84.  That value 84 is likely to be

A)  the boxplot    B)  the mean    C)  the range    D)  an outlier

12. A student received the following grades: An A in Statistics (4 credits), a F in Physics II (5 credits), a B in Sociology (3 credits), a B in a Literature seminar (2 credits), and a D in Tennis (1 credit).  Assuming A = 4 grade points, B = 3 grade points, C = 2 grade points, D = 1 grade point, and F = 0 grade points, the student's grade point average is:

A)  2.47    B)  2.24    C)  2.52    D)  2.40

13. Given that the variance for a data set is 1.20, what would be the standard deviation? 

A)  0.60     B)  1.20     C)  1.10     D)  1.44 

15. If a set of 25 numbers has standard deviation 9, then it's variance is

A)  45.00    B)  16.20    C)  81.00    D)  1.80

17. Determine the range for this data: 4, 7, 3, 16, 5, 22, and 8. 

A)  14     B)  19     C)  3     D)  4 

18. What is the range of the numbers –6, 2, –8, 3, 11

A)  19    B)  –6    C)  2    D)  3

19. The range of the set of numbers {8, 17, 3, 10, 5} is

A)  10    B)  14    C)  17    D)  3

20. What is the term for a characteristic or measure obtained by using all the data values for a specific population? 

A)  mode     B)  statistic     C)  parameter     D)  variable