An assembly consists of two independent mechanical components. Suppose that the probabilities that the first and second components meet specifications are 0.93 and 0.87, respectively. Let X be the number of components in the assembly that meet specifications. (a) Find the mean of X. (b) Find the variance of X. Round your answer to 4 decimals. Round your answer to 4 decimals.
An assembly consists of two independent mechanical components. Suppose that the probabilities that the first and second components meet specifications are 0.93 and 0.87, respectively. Let X be the number of components in the assembly that meet specifications. (a) Find the mean of X. (b) Find the variance of X. Round your answer to 4 decimals. Round your answer to 4 decimals.
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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