Question
If $A$ and $B$ are two events of a sample space $S$ such that $P(A) = 0.2$, $P(B) = 0.6$, and $P(A|B) = 0.5$, then $P(A'|B)$ =
If $A$ and $B$ are two events of a sample space $S$ such that $P(A) = 0.2$, $P(B) = 0.6$, and $P(A|B) = 0.5$, then $P(A'|B)$ =