(i) For the sequence of (jointly distributed) random variables X1, X2, . . ., Xn, Yl, Y2, ..., Yn, show the following: (a) If X1, X2, ..., Xn are independent, then n I(X1, X2, . . . , Xn; Yl, Y2, . .., Yn) 2> I(Xi; Yi). i=1