EMP Q.43
- Option : A
- Explanation : P(A) = P(B') P(A) = 1 - P(B) P(A) + P(B) = 1 P(A ∪ B) - P(A ∩ B) = 1 = P(S) Hence, A ∪ B = S only if A ∩ B = φ i.e. A = B' only if A ∩ B = φ
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