Suppose a discrete random variable X has range {-1, 0, 1, 2, 3} and cumulative distribution function (cdf) given by x²+3x+2 F_(x)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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Suppose a discrete random variable X has range {-1, 0, 1, 2, 3} and cumulative distribution function (cdf) given by
x² + 3x +2
20
F (x) =
X
What is the probability that X = 1?
Give an exact numerical answer expressed as a decimal expression accurate to four decimal places.
Transcribed Image Text:Suppose a discrete random variable X has range {-1, 0, 1, 2, 3} and cumulative distribution function (cdf) given by x² + 3x +2 20 F (x) = X What is the probability that X = 1? Give an exact numerical answer expressed as a decimal expression accurate to four decimal places.
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