If 2/11 is the probability of an event A...

If `2/11` is the probability of an event A,then what is the probability of the event 'not A'?

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Let the probability of an event .A. be .2/1 i. i.e., .dotP(A)=2/11. .P(. not .A)=1-dotP(A)=1-2/11=11/11-2/11=9/11.

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