1)

A and B are events such that P(A υ B) = 3/4, P(AB)=1/4,P(ˉA)=2/3then,P(ˉAB) is


A) 5/12

B) 3/8

C) 5/8

D) 1/4

Answer:

Option A

Explanation:

P(AB)=P(A)+P(B)P(AB)

3/4  =1P(ˉA)+P(B)1/4

1 = 1-2/3 + P(B) → P(B) = 2/3

Now ,P(ˉAB) = P(B) - P(AB) = 2/3 - 1/4 = 5/12