Electric circuit boards are rated excellent, acceptable, or unacceptable. Suppose that 30% of boardsare excellent, 60% are acceptable, and 10% are unacceptable. Further, suppose that 10% of excellentboards fail, 20% of acceptable boards fail and 90% of unacceptable boards fail.(a) What is the probability that a board fails?(b) Given that a board fails, what is the probability that it was rated excellent?

a) It is given that, 30% of boards are excellent, 60% are acceptable and 10% are unacceptable.

Answered: Electric circuit boards are rated…

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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