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There are 40 hardworking scholars in a class. Out of which 10 are sports-persons. Three scholars are selected at random out of them. Write the probability distribution for selected persons who are sports-persons. Find the mean of the distribution. Explain the importance of sports in education.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

Let X be the number of sports-persons selected. The X is a random variable which can take the values 0, 1, 2 and 3.

The corresponding probabilities are given by

The probability distribution is as follows:







Mean of the above probability distribution is calculated below.

Importance of sports in education:

It takes care of the mental and physical well-being of the person which in turn helps him to grow in the field of studies.

Answered by Expert 4th June 2014, 3:23 PM
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