Question

The sum of the probability of an event and non event is 1.



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Answer 1

Hey, here's your answer:

The sum of the probability of an event and non event is 1.

Such an event when the probability of it happening is 1, is called a sure event.

Hope it helps.

Have a great day! ;)

Answer 2

We have to find: the sum of the probability of an event and non event is 1.

Solurion:

Let E and E' be the event of getting an event and non event.

Probability of an event = P(E) and probability of a non event = P(E')

We know that,

∴ Probability of an event + Probability of a non event = 1

⇒ P(E) +  P(E') = 1

∴ the sum of the probability of an event and non event is 1.

Thus, true, the sum of the probability of an event and non event is 1.