The time of the nth point, Tn, of a Poisson process N of constant intensity on [0,) give rise to an effect Xne(tTn) where Xn are independent and identically distributed with finite variance. Find i. the mean and variance of the total effect N(T) W(t) = Xne(tTn) n=1 in terms of the first two moments of the Xn ii. the covariance of W(t) and W(s) iii. the correlation between W(t) and W(s).