Q.
Events $E_1$ and $E_2$ from a partition of the sample space S. A is any event such that
$P(E_1) = P(E_2) = \frac{1}{2}, P(E_2/A) = \frac{1}{2}$ and $P(A/E_2)=\frac{2}{3}$, then $P(E_1/A) $ is
Solution: