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Let X be a random variable whose probability density function is 21 + if 1 3 0 fx(I) = () otherwise. (a) Write down the

Let X be a random variable whose probability density function is

21 + if 1 3 0 fx(I) = () otherwise. (a) Write down the moment-generating function for X. (b) Use this moment-generating function to compute the first and second moments of X

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