Let X and Y be discrete random variables with the following joint probability function. f(x,y) = P(X=x,Y=y) 4 7 0.10 4 9 0.30 12 7 0.20 12 9 0.40 Determine the Covariance of XY is

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A: The discrete value of x and their probability are, X 0 1 2 3 4 5 6 P(X=x) 0.1 0.15 0.2 0.25…

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A: Step 1: Step 2: Step 3: Step 4:

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A: From the given information, the joint probability mass function for X and Y is,

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A:

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A:

Q: Please show work. X and Y are two discrete random variables having the joint probability…

A: Cov(X,Y)=E(XY)-E(X)E(Y)corr(X,Y)=Cov(X,Y)V(X)V(Y)

Q: and the variance for x and y.

A:

Q: Let X and Y be discrete random variables with the following joint probability function. f(x,y) = XY…

A:

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A:

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