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If A , B are event such that P(A)=0.6, P(B)=0.4 and P(A cap B)=0.2, then find P(B | A^c)

Answer»

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SOLUTION :`P(B |A^c)=(P(BcapA^c))/(P(A^c))=(P(B-A))/(1-P(A))=(P(B)-P(ACAPB))/(1-0.6)`
=`(0.4-0.2)/0.4=0.2/0.4=2/4=1/2`


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