For random variables Xand Y, consider the following moment
generating functions: MX+2Y (t) = (1 − 2t) −1 M2X−Y (t) = e 8(e
t−1) . Given that Var(X) = Var(Y ), calculate Cov(X, Y ).
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For random variables Xand Y, consider the following moment
generating functions: MX+2Y (t) = (1 − 2t) −1 M2X−Y (t) = e 8(e
t−1) . Given that Var(X) = Var(Y ), calculate Cov(X, Y ).