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If two events A and B are such that P(A...

If two events A and B are such that `P(A')=0.3,P(B)=0.4and P(AnnB')=0.5,` then find the value of `P[B//AuuB')].`

Text Solution

Verified by Experts

The correct Answer is:
`1//4`
`P[B//(AuuB')]=(P(Buu(AuuB')))/(P(AuuB'))`
`=(P(AuuB))/(P(A)+P(B')-P(AnnB'))`
`=(P(A)-P(AnnB'))/(P(A)+P(B')-P(AnnB'))`
`=(0.7-0.5)/(0.8)=1/4`
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