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In a sample study of 642 people, it was ...

In a sample study of `642` people, it was found that `514` people have a high school certificate. If a person is selected at random, the probability that the person has a high school certificate, is

A

`0.5`

B

`0.6`

C

`0.7`

D

`0.8`

Text Solution

Verified by Experts

The correct Answer is:
D
The total number of people in sample study, `n(S)=642.`
The number of people who have high school certificate, `n( E)=514.`
So, the probability that the person selected has a high school certificate
`=(n(E ))/(n(S))=514/642=0.8`
Hence, the probability that the person has a high school certificate is 0.8`.
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