Q7 of 249 Page 31

If P (A) = 0.4, P (B) = 0.3 and P(B/A)=0.5, find P(A∩B) and P(A/B).

Given: P(A) = 0.4, P(B)=0.3, P(B|A) = 0.5


To find: P(A|B) and P(A∩B)


We know that,



By substituting the values we get



is the required value


Similarly,



By substituting the values we get



is the required value


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