If P(A) = 0.4, P(B) = 0.5, and A and B are independent events, what is P(A ∪ B)? MCQ with Answer and Explanation

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If P(A) = 0.4, P(B) = 0.5, and A and B are independent events, what is P(A ∪ B)?

A. 0.7

B. 0.1

C. 0.2

D. 0.9

Answer: Option A

Solution (By JKExamLibrary)

For independent events, P(A ∩ B) = 0.4 × 0.5 = 0.2. Using the addition theorem: P(A ∪ B) = 0.4 + 0.5 - 0.2 = 0.7.

This question belongs to: Accountancy and Statistics Statistics

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