A Karate club consists of 46 persons holding a black belt (highest rating), 52 persons holding a brown belt (middle rating), and 95 persons holding a purple belt (lowest rating). What is the probability that a randomly-selected club member holds a brown belt or a purple belt?
A)0.313
B)0.762
C)0.238
D)0.687

Question

Quizplus · Accepted Answer

The total number of club members is 46 (black belt) + 52 (brown belt) + 95 (purple belt) = 193. The probability of selecting a member with a brown or purple belt is the sum of the probabilities of selecting a brown belt or a purple belt, which is (52 + 95) / 193 = 147 / 193 = 0.762.

A Karate Club Consists of 46 Persons Holding a Black