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.

x 25 50 75 100 Total
P(x) .24 .33 .29 .14 1.00

(a) Find the probability expressions: (Round your answers to 2 decimal places.)
b. P(X ≤ 50)
c. P(X > 25)
d. P(X < 75)

P(X ≤ 50) = 0.57

P(X > 25) = 0.76

P(X < 75)  = 0.57

Step-by-step explanation:

Given: probability distribution to the number of tubes that will rent on a randomly selected day.

x ⇒ the number of tubes

P(x) ⇒ probability

 x   :    25       50       75        100       Total

P(x) :  0.24    0.33     0.29     0.14          1

So,

P(x ≤ 50) = P(x = 25) + P(x = 50) = 0.24 + 0.33 = 0.57

P(x > 25) = Total - P(x = 25) = 1 - 0.24 = 0.76

P(x < 75) = P(x = 25) + P(x = 50) = 0.24 + 0.33 = 0.57

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09

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