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If A and B are two events suc that P(A)g...

If A and B are two events suc that P(A)`gt`0 and P(A)+P(B)`gt`1, then `P(B//A)ge1-(P(B'))/(P(A))`

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False
`becauseP(B//A)=(P(AcapB))/(P(A))`
`=(P(A)_P(B)-P(AcupB))/(P(A))gt(1-P(AcupB))/(P(A))`
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