2 Answered Questions for the topic Covariance

10/03/21

Covariance Alternative Formula
Can someone show how this is equivalent? Cov (X,Y) = E[X(Y – μY)] thank you in advance!
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09/19/18

Finding Cov(4X,4X+2Y)
Let X and Y be stochastic variables. Assume Var(X)=1.74 and Cov(X,Y)=0.79 What is Cov(4X,4X+2Y).  Have tried to use the formulas for Var and Cov to get around this problem, but haven't managed to... more
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