Q34 of 158 Page 34

If A and B are mutually exclusive events then

As P(A) and P(B) are mutually exclusive event.


∴ P(A ∪ B) = P(A) + P(B)


As P(A ∪ B) ≤ 1


∴ P(A) + P(B) ≤ 1


⇒ P(A) ≤ 1 – P(B)


⇒ P(A) ≤ P(B’)


Our answer matches with option (a)


∴ Option (a) is the only correct choice

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