Question
If $A$ and $B$ are two events such that $P(A)=\frac{1}{3}, P(B)=\frac{1}{5}$ and $P(A \cup B)=\frac{1}{2}$, then $P\left(A \mid B^{\prime}\right)+P\left(B \mid A^{\prime}\right)$ is equal to :
If $A$ and $B$ are two events such that $P(A)=\frac{1}{3}, P(B)=\frac{1}{5}$ and $P(A \cup B)=\frac{1}{2}$, then $P\left(A \mid B^{\prime}\right)+P\left(B \mid A^{\prime}\right)$ is equal to :