If P[A∪B] =1/3, P[A ∩ B]=1/12 and P[A] =1/6, find P[B]. – InterviewSolution

1.

If P[A∪B] =1/3, P[A ∩ B]=1/12 and P[A] =1/6, find P[B].

Answer»

P(A∪B) = P(A) + P(B)- P(A∩B)

1/3 = 1/6 + P(B) – 1/12; 1/3 – 1/6 + 1/12 = P(B)

∴ P(B) = 0.25

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