Problem: X is a discrete random variable. The following values of the cumulative distribution function of X are known: F(3) = .3, F(7) = .6, F(9) = .8, F(11) = .9. It is known that all of the possible values of X are odd numbers.
Required:
Question 1: What is the value of P r[X ≤ 7]?
Question 2: What is the value of P r[X ≥ 13]?
Question 3: What is the value of P r[X = 9]?
Question 4: What is the value of P r[3