If P(A)=`4/5` and P(`AcapB`)=`7/10`, then `P(B//A)` is equal to
If P(A)=`4/5` and P(`AcapB`)=`7/10`, then `P(B//A)` is equal to
A. `1/10`
B. `1/8`
C. `7/8`
D. `17/20`
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`because P(A)=4/5,P(Acap)=7/10`
`thereforeP(B//A)=(P(AcapB))/(P(A))=(7//10)/(4//5)=7/8`
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