For two events A and B, P(A ∪ B) = P(A) + P(B) only when

CA Foundation · Quantitative Aptitude · MTP · September 2024
For two events A and B, P(A ∪ B) = P(A) + P(B) only when
(A) A. A and B are equally likely events
(B) B. A and B are exhaustive events
(C) C. A and B are mutually independent
(D) D. A and B are mutually exclusive.

Suggested Answer and Working Notes:

Correct Answer: Option (D)

D. A and B are mutually exclusive.

Topics: Part-C: Statistics

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