The median of the test scores could be

a. I only

b. II only

c. I and II

d. II and III

e. I, II and III

17. (5 points) Which of the following cannot be probabilities?

I.	-2/3
II.
III.

a. I only

b. I and II only

c. I and III only

d. II and III only

e. I, II and III

18. A survey interested in the impact of transportation methods on the environment classifies Kennesaw State University students according to their transportation habits. Each student will be classified in one of the following five ways: driving alone, carpooling, using public transportation, walking or cycling. This variable is

A. quantitative

B. qualitative

19. An experiment classifies Kennesaw State University students as those having purchased a lottery ticket in the previous week and those who have not. This variable is

A. quantitative

B. qualitative

20. An experiment studies the number of miles a Kennesaw State University drives to campus. This variable is

A. discrete

B. continuous

21. An experiment studies cars as they run red lights at a particular intersection. When a car runs a red light, the researcher records the number of seconds that have passed between the light turning red and the car entering the intersection. This variable is

A. discrete

B. continuous

22. Diana is reading one play for a homework assignment. Consider the events I, II and III as given below.

I. Read a play by William Shakespeare

II. Read a play about Romeo and Juliet

III. Read a play about Hamlet

Which of the following is true?

A. Events I and II are mutually exclusive and events I and III are mutually exclusive.

B. Events I and II are not mutually exclusive but events I and III are mutually exclusive.

C. Events I and II are not mutually exclusive and events I and III are not mutually exclusive.

D. Events I and II are mutually exclusive and events I and III are mutually exclusive and events II and III are mutually exclusive.

E. Events I and II are not mutually exclusive and events I and III are not mutually exclusive and events II and III are not mutually exclusive.

23. On a test with a mean score of 79 and a standard deviation of 4, Jenny earned a score which corresponds to a z-score of . What is Jenny's raw score?

A. 85

B. 83

C. 77.5

D. 75

E. 73

Key:

16. D
17. A
18. B
19. B
20. B
21. B
22. C
23. E