Let X be a random variable with E X 1 Show that E X2 1 if X is not degenerate Hint Use Jensens inequality ...

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Let X be a random variable with E[X] 1. Show that E X2 1

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Let X be a random variable with E[X] Æ 1. Show that E

X2¤

È 1 if X is not degenerate.

Hint: Use Jensen’s inequality.

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Probability And Statistics For Economists

ISBN: 9780691235943

1st Edition

Authors: Bruce Hansen

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Question Posted: Sep 23, 2024 07:00 AM

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Let X be a random variable with E[X] 1. Show that E X2 1 if X is not degenerate. Hint: Use Jensens inequality.
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Let X be a random variable with E[X] 1. Show that E X2 1

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Probability And Statistics For Economists

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