Question

The probability of a certain event occurring is 0.27. What is the probability that the event will NOT occur?

0.73
0.27
0
1

Answer 1

The probability of the event that will not occur is 0.73.

Answer 2

Option A - 0.73

Explanation:

Given : The probability of a certain event occurring is 0.27 →P(A)=0.27

To find : The probability that the event will NOT occur →
`P(A^c)`

Solution: Since we know the sum of probability is 1

According to rule of complement →
`P(A^c) + P(A) = 1`

P(A)= 0.27 , put value we get

`P(A^c) + 0.27 = 1`

`\rightarrow P(A^c)= 1-0.27`

`\rightarrow P(A^c)=0.73`

Therefore, option A is correct

Probability that the event will not occur= 0.73