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    Expected Value Quadratic Calculations

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    Let X be a random variable and let c be a constant.

    Show that E(X-c)^2 is a minimum when c = E[X]

    © BrainMass Inc. brainmass.com March 4, 2021, 7:04 pm ad1c9bdddf

    Solution Preview

    This is a quadratic function of c, and let it be f(c) = ...

    Solution Summary

    This solution uses the quadratic function of c and shows when E(X-c)^2 is a minimum. All calculations and formulas are shown in a structured manner.