Let X be a standard normal random variable and Y eX a Obtai

Let X be a standard normal random variable and Y = e^X,

(a) Obtain E[sin(2?X)].

(b) Obtain the PDF of Y .

(c) Using the MGFof X,obtain the nth moment of Y, n=1,2,....

(d) Let Z be a continuous random variable with PDF

Using (a), obtain c and the nth moment of Z.

(e) What conclusion can you draw?

1+sin(2r Ing g(y) = cy

Solution

Let X be a standard normal random variable and Y = e^X, (a) Obtain E[sin(2?X)]. (b) Obtain the PDF of Y . (c) Using the MGFof X,obtain the nth moment of Y, n=1,

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