Question

If A and B are mutually exclusive events, P(A) = 0.35 and P(B) = 0.45, find P(B′)

Answer 1

Given that P(A) = 0.35 and P(B) = 0.45

Since the events A and B are mutually exclusive then P(A ∩ B) = 0

P(B') = 1 – P(B)

= 1 – 0.45

= 0.55