If the probability of an event happening is x, then the probability of event not happening is___

1 - x

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x - 1

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x + 1

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1/x

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Solution

The correct option is A
1 - x

If E and $¯ ¯¯ ¯ E$ (not E) are the complementary events, then, we have, P(not E) = 1 - P(E), where P(E) is the probability of happening of event E.

Thus if the probability of an event happening is x, then the probability of the event not happening is 1 - x.

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If the probability of an event happening is x, then the probability of event not happening is___

The correct option is A 1 - x If E and ¯¯¯¯E(not E) are the complementary events, then, we have, P(not E) = 1 - P(E), where P(E) is the probability of happening of event E. Thus if the probability of an event happening is x, then the probability of the event not happening is 1 - x.

The correct option is A
1 - x

If E and $¯ ¯¯ ¯ E$ (not E) are the complementary events, then, we have, P(not E) = 1 - P(E), where P(E) is the probability of happening of event E.

Thus if the probability of an event happening is x, then the probability of the event not happening is 1 - x.