Q58 of 249 Page 31

Mark the correct alternative in each of the following:

Let A and B be two events. If P(A) = 0.2, P(B) = 0.4, P(A ∪ B) = 0.6, then P(A/B) is equal to


P(A) = 0.2 , P(B) = 0.4 , P(A∪B) = 0.6 → (Given)


According to the addition theorem of probability,


P(A⋃B) = P(A) + P(B) – P(A⋂B)


0.6 = 0.2 + 0.4 – P(A∩B)


0.6 = 0.6 – P(A∩B)


P(A∩B) = 0 → (1)


Now,




= 0

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