Answered: 15. Let X be a discrete random variable…

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15. Let X be a discrete random variable with the following cdf: x < -2 2≤ x < -1 - 1

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

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15. Let X be a discrete random variable with the following cdf:
x < -2
2≤ x < -1
- 1<x<0
0<x< 1
1<x<2
x ≥ 2
0,
1/8,
3/8,
5/8,
7/8,
1,
a) Find the probability distribution function of X.
F(x) =
b) Find the expected value and standard deviation of X.
c) Find P(-1 ≤ x ≤ 1)

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