Question

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Answer 1

Answer: the probability for this would be 1

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Answer 2

Answer:

what is the probability of non-occurrence of an event that is certain to happen?

ans : An event which is certain to happen has a probability of occurrence of 1. Let this event be E. i.e, P(E)=1.The event that event E doesn't occur is the complement of the original event E. This can be denoted by Ec.We have P(EUEc)=P(E)+P(Ec)=1.Hence,P(Ec)=1-P(E)=1-1=0. Therefore, the probability of non-occurrence of a certain event is 0.

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