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A and B are two events such that P(A) ne...

A and B are two events such that `P(A) ne 0`. Find P(B/A) if (i) A is a subset of B (ii) `A nn B = phi`

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The correct Answer is:
`therefore P(B//A) = (P(A nn B))/(P(A)) = (0)/(P(A)) = 0`
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