Question: 7.28. Suppose that the continuous random variable X has pdf - f(x)=2xe, x 0. Let Y = x. Evaluate E(Y): (a) directly without first obtaining

7.28. Suppose that the continuous random variable X has pdf - f(x)=2xe, x 0. Let Y = x. Evaluate E(Y):

(a) directly without first obtaining the pdf of Y,

(b) by first obtaining the pdf of Y.

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