In a class of 30 students, 18 are men, 6 are earning a B, and no men are earning a B. If a student is randomly selected from the class, find the probability that the student is a man or earning a B.
A) .8
B) .4
C) .54
D) .24

Question

Quizplus · Accepted Answer

The probability of selecting a man is 18/30. The probability of selecting a student earning a B is 6/30. Since no men are earning a B, these events are mutually exclusive. Thus, the probability of selecting a man or a student earning a B is (18/30) + (6/30) = 24/30 = 0.8.

In a Class of 30 Students, 18 Are Men, 6