If $\frac{2}{11}$ is the probability of an event, what is the probability of the event $'$ not $A ^{\prime}$.
If $\frac{2}{11}$ is the probability of an event, what is the probability of the event $'$ not $A ^{\prime}$.
It is given that $P ( A )=\frac{2}{11}$
Accordingly, $P ($ not $A )=1- P ( A )=1-\frac{2}{11}=\frac{9}{11}$
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