3. Prove that, for any random variable X, the minimum of E(X - a)² is attainedfor a = EX.Proved

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Answered: 3. Prove that, for any random variable…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter5: Orthogonality

Section5.3: The Gram-schmidt Process And The Qr Factorization

Problem 11AEXP

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3. Prove that, for any random variable X, the minimum of E(X - a)² is attained for a = EX. Proved