Question: 3.37 With reference to Exercise 3.7, suppose that each point (i, j) of the sample space is assigned the probability 420/401 2(i + j) .

3.37 With reference to Exercise 3.7, suppose that each point (i, j) of the sample space is assigned the probability 420/401 2(i + j) .

(a) Verify that this assignment of probabilities is permissible.

(b) Find the probabilities of events X, Y, and Z described in part

(b) of that exercise.

(c) Find the probabilities that two, three, or four of the supervisors will be present on the site.

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