A discrete random variable x can assume five possible values: 2, 3, 5, 8, 10. Its probability distribution is shown below. Find the probability for the value of x = 8. 10 0.15 0.30 0.25 X 2 3 5 8 0.2 0.10 0 P( X) 0.7 0.1 0.3 0.2

A discrete random variable x can assume five possible values: 2, 3, 5, 8, 10. Its probability distribution is shown below. Find the probability for the value of x = 8. 10 0.15 0.30 0.25 X 2 3 5 8 0.2 0.10 0 P( X) 0.7 0.1 0.3 0.2

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

A discrete random variable x can assume five possible values: 2, 3, 5, 8, 10. Its probability distribution is shown below. Find the
probability for the value of x = 8.
10
0.15 0.30 0.25
X 2 3 5 8
P(
0.10
0.2
0
X)
0.7
0.1
0.3
0.2

Expert Solution

Step 1

Answer

Given

X 2 3 5 8 10

P[x] 0.10 0.20 0.15 0.30 0.25

we know that sum of p[x] = 1

P[x] =0.10+0.20+0.15+0.30+0.25

P[x] =1

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