Question

Twenty-six students apply to serve as an usher at a school function. Eight of the those applying are freshmen, 7 are sophomores, 6 are juniors, and 5 are seniors. Suppose 13 of those who apply are randomly selected by drawing names. Which statement BEST describes this situation?

A) The situation is an example of uniform probability because exactly
1
2
of the applicants are being selected.
B) The situation is not an example of uniform probability because the same number of students will be selected as rejected.
C) The situation is an example of uniform probability because freshmen, sophomores, juniors, and seniors have equal probabilities of being selected.
D) The situation is not an example of uniform probability because freshmen, sophomores, juniors, and seniors do not have equal

Answer 1

d

Explanation:

usatestprep

Answer 2

d

Explanation:

from usatestprep:

The situation is not an example of uniform probability because freshmen, sophomores, juniors, and seniors do not have equal probabilities of being selected.; Uniform probability → equal probability of being selected

P(freshman) =

8/

26

; P(sophomore) =

7 /

26

; P(junior) =

6 /

26

; P(senior) =

5 /

26

; unequal probabilities → not uniform