Answered: P(x) 6. 0.2 7 0.2 0.3 9 0.2 10 0.1 1.…

P(x) 6. 0.2 7 0.2 0.3 9 0.2 10 0.1 1. Calculate the mean or the expected value of X 2. Calculate the variance of the random variable , X 3. Calculate the standard deviation of the random variable , X

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

Consider the following discrete probability distribution.

X
P(x)
0.2
7
0.2
8
0.3
9.
0.2
10
0.1
1. Calculate the mean or the expected value of X
2. Calculate the variance of the random variable , X
3. Calculate the standard deviation of the random variable,

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