3 Let X be a random variable with density fx(x) Suppose the density fx is symmetric about x a that is fx(a x) fx( x) In a couple of simple steps, show that E X 3 Let X be a random variable with density fx(x) Suppose the density fx is symmetric about x a that is fx(a x) fx( x) In a couple of simple...

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3. Let X be a random variable with density fx(x). Suppose the density fx is symmetric...

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3. Let X be a random variable with density fx(x). Suppose the density fx is symmetric...

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