Question

If A and B are any two events of a sample space S, then P.A/ D P.A and B/ 􀀀 P.B/.

Answer 1

Solution:

Given, A and B are any two events of a sample space S.

$P(A\cup B)=P(A)+P(B)-P(A\cap B)$

And, $P(A|B)=\dfrac{P(A\cap B)}{P(B)}$