N — 1 ' which captures the dependence of E(AK] on a(n), b(n), c(n) and d(n) in its entirety. Of course, the sign of s(n; K) determines the sign of El AK and E(Ax]. Comparing s(n; K) in Eq. (53) to its deterministic counterpart in Eq. (I) reveals that when N is small or when K is small regardless of