10.A spinner has equal sectors. Three sectors are blue, two are red and four are green. Which is the correct probability distribution?

a) blue =3/9; red =2/9; green =4/9

b)blue =3/24; red =2/24; green =4/24

c) blue =3/10; red =2/10; green =4/10

d) blue= 1/3; red= 1/2; green= 1/4

12.A clothing store makes the following offer to its customers.

Select 2 pairs of pants from 5 different types and 3 shirts from 10 different types.

How many different outfits could a customer select?

a. 5p2 x 10p3

b. 23310

c. 15c5

d. 5c2 x 10c3

13.Which statement is false?

a)The values of a continuous variable are arrived at by counting.

b)A continuous variable can have any value in a given range.

c)Variables that involve measurement are continuous.

d)A continuous variable may have integer values.

14.A statistical study found a correlation between the percent of family income spent on food and the percent of family income spent on leisure activities. This is an example of

a) a reverse cause-and-effect relationship

b)a presumed cause-and-effect relationship

c)a cause-and-effect relationship

d)a common-cause factor

15.A bag contains 8 red, 7 green, 5 black, and 10 yellow jelly beans. Six jelly beans are selected at random without replacement. What is the expected number of black jelly beans to be selected?

a)4.2

b)2

c)1

d)6

16.The numbers of monitors sold by a computer store on 11 consecutive business days are listed. What are the mean, median, and mode for this set of data?

4, 10, 10, 11, 10, 10, 13, 30, 12, 20, 24

a) mean 14, median 11, mode 10

b) mean 11, median 14, mode 10

c) mean 10, median 11, mode 14

d) mean 17, median 14, mode 10

19.At the cafeteria, Edan has a choice of three soups, four types of sandwich, and two desserts. In how many ways can Edan choose his lunch if he has soup, a sandwich, and dessert?

a.24

b.9

c.12

d.18

Question 17 Given = 783.2 and n = 110, then the sample standard deviation, s, is approximately ( a) 7.185 O b) 3.125 O c) 2.681 O d) 2.668Question 18 Six girls and five boys wish to join a ski trip. Four of them will be selected at random. What is the probability that there will be one girl and three boys? O a) 1 x 3 O b) 1 x 3 Od) six , CQuestion 20 Which graph shows the most appropriate line of best fit for the given scatter plot? a) Y X (b) Y X Ocy X O d) Y X