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Consider the discrete-time random process Y[n] = X [n] + 2 X[n - 2], Vn. The random process X [n] has independent and identically distributed

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Consider the discrete-time random process Y[n] = X [n] + 2 X[n - 2], Vn. The random process X [n] has independent and identically distributed (IID) samples, with zero mean and unit variance. (a) Find the mean my [n] of Y[n] (b) Find the autocorrelation sequence (ACS) ry [n1, n2] of Y[n]

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