Jane rents inner tubes by the river that runs by her house. Based on past experience, she has assigned the following probability distribution to the number of tubes she will rent on a randomly selected day.

x 25 50 75 100 Total

P(x) .14 .38 .24 .24 1.00

Find the Probability Expressions (round answers to 2 decimal places)

a. P(X = 25)

b. P(X < 50)

c. P(X > 25)

d. P(X < 75)