Let Y be a random variable that we would like to predict. Suppose that we must choose

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Let Y be a random variable that we would like to predict. Suppose that we must choose a single number d as the prediction and that we will lose (Y ˆ’ d)2 dollars. Suppose that our utility for dollars is a square root function:
if x20, U(x) = -x if x <0.

Prove that the value of d that maximizes expected utility is a median of the distribution of Y.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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Probability And Statistics

ISBN: 9780321500465

4th Edition

Authors: Morris H. DeGroot, Mark J. Schervish

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