For random variables X,Y and Z it is given that

$\displaystyle Cov(X,Y) = \alpha$ and $\displaystyle Cov(X,Z) = \beta$

Obtain $\displaystyle Cov(X,Y+Z)$

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- Jan 7th 2010, 07:48 PMthanapaRandom variables Question
For random variables X,Y and Z it is given that

$\displaystyle Cov(X,Y) = \alpha$ and $\displaystyle Cov(X,Z) = \beta$

Obtain $\displaystyle Cov(X,Y+Z)$ - Jan 7th 2010, 10:53 PMmatheagle