Q. 64.3( 3 Votes )

If A and B are two events such that 2P (A) = P (B) = 5/13 and P (A/B) = 2/5, find P (A B).

Answer :

We have, 2P (A) = P (B) =


2P (A) =


P (A) = =


Now, we need P (A B)


We have, =


P (A B) =


=


=


Now, P (A B) = P (A)+ P (B)- P (A B)


=


(taking lcm as 26 is common factor)


= (answer)


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