4.32: Expected Value of Random Variables | Exercise Solution of Probability & Statistics by Walpole

This is the exercise problems solution of the 9th edition of"Probability and Statistics for Engineers and Scientists by Walpole". In this video, I solve exercise problem 4.32 to find the expected value or average value using the joint probability function.
4.32 In Exercise 3.13 on page 92, the distribution of the number of imperfections per 10 meters of synthetic fabric is given by
x 01234
f(x) 0.41 0.37 0.16 0.05 0.01
(a) Plot the probability function.
(b) Find the expected number of imperfections, E(X) = μ.
(c) Find E(X2)
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[@Haider5667]

Thank you sir

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Q 4.34...?

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