The probabilities that a washing machine sold by a manufacturer will require 0, 1, 2, 3 or 4 repairs during the warranty period are 0.45, 0.30, 0.15, 0.05 and 0.05 respectively. What is the expected number of repairs that a washing machine would need during the warranty period?

The probabilities that a washing machine sold by a manufacturer will require 0, 1, 2, 3 or 4 repairs during the warranty period are 0.45, 0.30, 0.15, 0.05 and 0.05 respectively. What is the expected number of repairs that a washing machine would need during the warranty period?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The probabilities that a washing machine sold by a manufacturer will require 0, 1, 2,
3 or 4 repairs during the warranty period are 0.45, 0.30, 0.15, 0.05 and 0.05
respectively. What is the expected number of repairs that a washing machine would
need during the warranty period?

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