Question

if P(E) =0.38, then probability of 'not E' is

Answer 1

1_.38=0.62 ( P(E) + P(E not) =1)

Answer 2

If P(E) = 0.38 then the probability of not E is 0.62

Given :

P(E) = 0.38

To find :

The probability of not E

Solution :

Step 1 of 2 :

Write down the given probability

Here it is given that for the event E

P(E) = 0.38

Step 2 of 2 :

Find probability of not E

We know that for any event E ,

P(E) + P(not E) = 1

In order words P(E) + P(E') = 1

Thus we get

P(E) + P(not E) = 1

⇒ 0.38 + P(not E) = 1

⇒ P(not E) = 1 - 0.38

⇒ P(not E) = 0.62

Hence the required probability of not E = 0.62

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