Question: solve problem A box contains a set of 20 circular saw blades: five with a radius of 2 inches, eight with a radius of 3.5

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A box contains a set of 20 circular saw blades: five with a radius of 2 inches, eight with a radius of 3.5 inches, five with a radius of 4 inches, and two with a radius of 5 inches. Let X be the random variable that gives the radius of a randomly drawn saw blade. (a) What is the expected value of X? (b) Using the definition, find the variance of X. (c) What is the expected value for the area of the randomly chosen saw blade? Hint: Find the expected value of some function, h(X), of X

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