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    How do you find the expected probability from the density function f(x) = e^-x?

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    The density function of a random variable X is

    f(x) = e^-x x >= 0
    = 0 otherwise

    Find (a) E(X), (b) E(X²), (c) E{(X-1)²}.

    Please see attached for full question.

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    Solution Summary

    This solutions provides step-by-step calculations for integrating the density function to find the area under the curve in an attached Word document.