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.