Question

If A and B are two events, then the probability of occurrence of A only is _______________.

Answer 1

If A and B are two events then probability of occurrence of A only is P$\left(A\cap \overline{B}\right)$
i.e $P\left(A\cap \overline{B}\right)=P\left(A\right)-P\left(A\cap B\right)$