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C. For each of the following, determine whether it can serve as the probability distribution of a random variable X. I.P(X) = for x - 1, 2, 3 2. P (X) = = A for X = 1, 23...., 8 1+* 3. r(X) for x = 1, 2, 3, 4 1-X 12 4. P (X) = for X - 1, 2, 3, 4 25X X-3 5. P (X) for x = 1, 2. 3, 4, 5 7