Question: Determine whether each function or table in Problems 15-18 represents a discrete probability distribution. 1. Pr(x) = x 15, x = 1, 2, 3, 4,

Determine whether each function or table in Problems 15-18 represents a discrete probability distribution.
1. Pr(x) = x 15, x = 1, 2, 3, 4, 5
2. Pr(x) = x 55, x = 1, 2, 3, 4, 5, 6, 7, 8, 9
3.
x Pr(x)
3............................1/6
4............................1/3
5............................1/3
6............................1/6
4.
x Pr(x)
2............................1/2
3............................1/4
4...........................-1/4
5............................1/2

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