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Standard VIII

Mathematics

Experimental Probability

In a sample s...

Question

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 :

0.5

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0.6

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0.7

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0.8

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Solution

The correct option is B $0.8$
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
$∴ P (E) = \frac{n (E)}{n (S)} = \frac{514}{642} = 0.8006$
Hence, D is the correct option.

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Q. Question 25
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:

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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 :

The correct option is B 0.8Given that:Total number of people n(S)=642No. of peoples having high school certificate n(E)=514P(E)=Probability that the person has a school certificate∴P(E)=n(E)n(S)=514642=0.8006Hence, D is the correct option.

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 :

The correct option is B $0.8$
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
$∴ P (E) = \frac{n (E)}{n (S)} = \frac{514}{642} = 0.8006$
Hence, D is the correct option.