If A and B are mutually exclusive events with P(A) = 0.2 and P(B) = 0.6, then P(A or B) = _____.
A) 0.00
B) 0.12
C) 0.8
D) 0.4

Question

Quizplus · Accepted Answer

Mutually exclusive events cannot occur at the same time, so the probability of both A and B happening together is 0. Therefore, to find the probability of A or B occurring, we can just add the individual probabilities: P(A or B) = P(A) + P(B) = 0.2 + 0.6 = 0.8. Therefore, the answer is C.

If a and B Are Mutually Exclusive Events with P(A)