1. Let X₁ and X₂ be any random variables, then V(X₁ + X₂) must be: A) greater than V(X₁) + V(X₂). B) less than V(X₁) + V(X₂). C) 0. D) None of the above.

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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1. Let X₁ and X₂ be any random variables, then V(X₁ + X₂) must be:
A) greater than V(X₁) + V(X₂).
B) less than V(X₁) + V(X₂).
C) 0.
D) None of the above.
Transcribed Image Text:1. Let X₁ and X₂ be any random variables, then V(X₁ + X₂) must be: A) greater than V(X₁) + V(X₂). B) less than V(X₁) + V(X₂). C) 0. D) None of the above.
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