# Question

A certain discrete random variable has a CDF given by

(a) Find the probability mass function, px (k), of this random variable.

(b) For a positive integer n, (X ≥ n) find .

(c) For two positive integers, n1and n2, such that n1 < n2, find Pr (n1 ≤ X < n2

(a) Find the probability mass function, px (k), of this random variable.

(b) For a positive integer n, (X ≥ n) find .

(c) For two positive integers, n1and n2, such that n1 < n2, find Pr (n1 ≤ X < n2

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