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a.) Determine the second-order moments, E[U^2] and E[V^2], of the random variables U and V, respectively.

b.) Determine the correlation E[UV] between U and V.

c.) Determine the mean function ux(t).

d.) Determine the auto-correlation function Rx(t1,t2).

e.) Determine the stationarity of the process X(t).

Any help would be greatly appreciated. Thanks all.