Question

Given P(A) =0.5 and P(B) =0.4. If A and B are mutually exclusive, compute P(A or B)

Answer 1

The probability of either event A or event B occurring is 0.9.

Step-by-step explanation:

For mutually exclusive events A and B, the probability (P) that at least one occurs (A or B) is P(A) + P(B). In this case, since A and B are mutually exclusive, we can compute P(A or B) by adding their individual probabilities: P(A) + P(B). Given that P(A) = 0.5 and P(B) = 0.4, we can substitute these values into the formula to get: P(A or B) = 0.5 + 0.4 = 0.9. Therefore, the probability of either event A or event B occurring is 0.9.