Math, asked by a88056731, 4 months ago

In a sample study of 640 people, it was found that 512 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

class 9th question​

Answers

Answered by naveenraj81
10

Answer:

Given that:

Total number of people n(S)=642

No. of peoples having high school certificate n(E)=514

P(E)=Probability that the person has a school certificate

∴P(E)=

n(S)

n(E)

=

642

514

=0.8006

Hence, D is the correct option.

Step-by-step explanation:

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Answered by Anonymous
7

Given:

People in sample study = 640

People having high school certificate = 512

To Find:

If a person is selected at random, the probability that the person has a high school certificate

Solution:

Total number of people n(S ) = 640

Total number of people having high school certificate n(E) = 512

P (E) = Probability that a person has a school certificate

Thus,

P (E) = n(E)/ n(S )

= 512/640

= 0.8

Answer: The probability that the person has a high school certificate is (d) 0.8

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