Q. 94.2( 54 Votes )

If A and B are tw

Answer :

Given: P (A) =, P (B) = and P (A B) =

P(not A and not B) = P(A B)


As, { A B =(A B)}


P(not A and not B) = P ((A B))


= 1 - P (A B)


= 1- [P(A) + P(B) - P (A B)]




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