75
Probability of happening of an event is denoted by $p$ and probability of non-happening of the event is denoted by $q$. Relation between $p$ and $q$ is
- (a)$p + q = 1$
- (b)$p = 1,q = 1$
- (c)$p = q -1$
- (d)$p + q + 1 = 0$
Show SolutionHide Solution↓
(A) $p + q = 1$