8.16 Suppose that

(a) X is Bernoulliwith Pr(X = 1)= 1−Pr(X = 0) = ????, and(b)

Y given X = j is normal with mean ????j, variance ????2, a simple formof the discriminant analysis model. Consider now the monotone missing-data pattern with Y completely observed but n−r values of X missing, and an ignorable missingness mechanism. In Problem 7.17, we found that the factored likelihood method of Chapter 7 does not provide closed-form expressions for ML estimates. Describe the E and M steps of the EM algorithm for this problem, and provide a flow chart for programming this algorithm.