Political Science homework help. X = number of jobs held during the past year for work study students at a university is as follows:X: 0, 1, 2, 3, 4, 5f(x): 0.12, a, 0.28, 0.18, 0.06, 0.02Find a. Find the probability that a randomly selected student held 3 or more jobs during the past year. Find the cumulative distribution form. Find the E(X). How many jobs would you expect a randomly selected student to hold in the past year?
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