On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on her past experience, she has assigned the following probability distribution to the number of tubes she will rent on a randomly selected day.

x255075100TotalP(x).13.33.34.201.00

(a)Find the probability expressions:(Round your answers to 2 decimal places.)

a.P(X= 75).30Numeric Response

Edit Unavailable..30incorrect.

b.P(X 50).90Numeric Response

Edit Unavailable..90incorrect.

c.P(X> 25).40Numeric Response

Edit Unavailable..40incorrect.

d.P(X< 75)1Numeric Response

Edit Unavailable.1incorrect.

(b)Which of the probability expressions in parts (a)-(d) is a value of the CDF?

multiple choice

• Part (a)
• Part (b)
• Part (c)
• Part (d)
• Incorrect