An assembly consists of two independent mechanical components. Suppose that the probabilities that the firstand second components meet specifications are 0.96 and 0.89, respectively. Let X be the number of componentsin the assembly that meet specifications.(a) Find the mean of X.(b) Find the variance of X.

The random variable X defines the number of components in the assembly that meet specification.

Answered: and second components meet…

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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and second components meet specifications are 0.96 and 0.89, respectively. Let X be the number of components n the assembly that meet specifications. a) Find the mean of X. b) Find the variance of X.