F(x) = x < -1 = 0 F(x) = -1 ≤ x < 0 = .15 F(x) = 0 ≤ x < 2 = .3 F(x) = 2 ≤ x < 3 = .5 F(x) = 3 ≤ x < 5 = .75 F(x) = x≥ 5= 1 1) What is the probability distribution for the random variable X? 2) Using the information above, find: Pr(-1 < x ≤ 2)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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F(x) = x < -1 = 0

F(x) = -1 ≤ x < 0 = .15

F(x) = 0 ≤ x < 2 = .3

F(x) = 2 ≤ x < 3 = .5

F(x) = 3 ≤ x < 5 = .75

F(x) = x≥ 5= 1

1) What is the probability distribution for the random variable X?

2) Using the information above, find:

Pr(-1 < x ≤ 2)

Pr(-1 ≤ x ≤ 3)

Pr(-1 ≤ x < 4)

Pr(2.5 < x < 4.7)

Pr(x < 2)

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