Question
Given that A and B are two events such that $P(B) = \frac{3}{5}$, $P(A \mid B) = \frac{1}{2}$, and $P(A \cup B) = \frac{4}{5}$, then $P(A) = ?$
Given that A and B are two events such that $P(B) = \frac{3}{5}$, $P(A \mid B) = \frac{1}{2}$, and $P(A \cup B) = \frac{4}{5}$, then $P(A) = ?$