Defects               0            1           2          3           4           5 Probability      .259        .295       .243     .155       .037      .011   Find mean, variance and standard deviation of probability distribution I don't understand how to solve this

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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Defects               0            1           2          3           4           5

Probability      .259        .295       .243     .155       .037      .011

 

Find mean, variance and standard deviation of probability distribution

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