Please answer this question: Computer chips are manufactured independently by three factories, and let Xi, i = 1, 2, 3 be the r.v.\'s denoting the total numbers of defective items in a day\'s production by the three factories, respectively. Suppose that the m.g.f of Xi is given by Mi(t) = 1/(1 - beta t) and let X be the combined number of defective chips in a day\'s production. Express the EX and the sigma 2(X) in terms of the alpha I\'s and beta. Compute the numerical values of EX and sigma (X) for beta = 2 and alpha i = 10 i= 1,2.3. Solution Question details not found.. Please post the question to get it answereed.