1. Consider two random variables, X and Y. Suppose E(X) = 6, var(X) = 9, E(Y) = 0, var(Y) = 4, and corr(X, Y) = 0.25. Fi

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answerhappygod
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1. Consider two random variables, X and Y. Suppose E(X) = 6, var(X) = 9, E(Y) = 0, var(Y) = 4, and corr(X, Y) = 0.25. Fi

Post by answerhappygod »

1. Consider two random variables, X and Y. Suppose E(X) = 6,
var(X) = 9, E(Y) = 0, var(Y) = 4, and corr(X, Y) = 0.25. Find the
following, showing all your steps:
A. var(X + Y)
B. cov(X, X + 2Y)
C. corr(X + Y, X – Y)
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