Q. 58

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

A. 0.8

B. 0.5

C. 0.3

D. 0

Answer :

P(A) = 0.2 , P(B) = 0.4 , P(AB) = 0.6 (Given)


According to the addition theorem of probability,


P(AB) = P(A) + P(B) – P(AB)


0.6 = 0.2 + 0.4 – P(AB)


0.6 = 0.6 – P(AB)


P(AB) = 0 (1)


Now,




= 0

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