If the PDF of X is f(x)=2x/k2 for 0
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If the
PDF of X is f(x)=2x/k2 for 0<x<k, for what value of k is the variance of X equal to 2?
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- Repeat Example 5 when microphone A receives the sound 4 seconds before microphone B.Suppose X and Y are two independent variables with variance 1. Let Z = X+bY where b > 0. If Cor(Z, Y ) = 1/2, what is the value of b?Let the pdf of X be defined by f(x) = ke−0.3x for all positive values of x and for some constant k. Solve for the following: a) mean of X b) variance of X
