Show that V (X + Y) = V (X) + V (Y) + 2 Cov(X, Y).

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Discrete Mathematics and Its Applications

ISBN: 978-0073383095

7th edition

Authors: Kenneth H. Rosen

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Question Posted: May 03, 2016 01:46 AM

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Show that V (X + Y) = V (X) + V (Y) + 2 Cov(X, Y).

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We can prove this by doing some algebra using T...View the full answer

Discrete Mathematics and Its Applications

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