\(P_s(s_g^t)=\int_(^{ }((s_(g-1)^t+s_g^t))⁄2)^(((s_g^t+s_(g+1)^t))⁄2)▒〖f_s^t(s)dsforg=2\dots(N_s-1)〗\)          (8)
\(P_s(s_g^t)=\int_(^{ }((v_(s-1)^t+v_s^t))⁄2)^∞▒〖f_s^t(s)dsforg=N_s〗\)