A frozen yogurt shop conducted a survey in which it asked every fourth customer for his or her favorite flavor. Most of the customers surveyed preferred vanilla yogurt, so the shop concluded that the customers' favorite flavor is vanilla. Is this a valid conclusion?

Question

A.
No. Since it was a biased sample, it is most likely not representative of the population.

B.
Yes. Since it was a biased sample, it is most likely representative of the population.

C.
Yes. Since it was a random sample, it is most likely representative of the population.

D.
No. Since it was a random sample, it is most likely not representative of the population.

Answer 1

A. No. Since it was a biased sample, it is most likely not representative of the population.

Answer 2

So far this season, Shawn has averaged 7 out of 11 free throws per game. Based on his previous performance, how many free throws can Shawn expect to make if he takes 22 free throws in his next game?
A.
4
B.
14
C.
21
D.
7

Answer 3

C. 21

Answer 4

Jean drove 61 miles per hour for a total of 488 miles on a trip. She used the equation below to calculate the time, t, it would take her to complete the trip.

What is the constant of proportionality in the equation?
A.
488
B.
8
C.
61
D.
t

Answer 5

C. 61

Answer 6

To get ready for the daily lunch rush, a deli prepared 30 salads topped with croutons. The manager randomly selected 5 of the salads and counted the number of croutons on each salad. The results are shown in the table below.

Sample of Salads
Salad Number of
Croutons
A 11
B 16
C 11
D 12
E 15

Assuming the sample was representative of all the prepared salads, what was the mean number of croutons per salad?
A.
14
B.
12
C.
11
D.
13

Answer 7

The mean number of croutons per salad is calculated by adding up the number of croutons on each salad and dividing by the total number of salads.

(11 + 16 + 11 + 12 + 15) / 5 = 65 / 5 = 13

Therefore, the mean number of croutons per salad is 13.

D. 13

Answer 8

41.90+20