Question:
If $\frac{2}{11}$ is the probability of an event, what is the probability of the event 'not $A$ '.
Solution:
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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