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What is the probability that a randomly selected automobile manufactured by the company has a defective microprocessor

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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Question

An automobile manufacturer obtains the microprocessors used to regulate fuel consumption from three
microelectronic firms: A, B and C. The quality control department of the company has determined that 1% of the
microprocessors from A are defective, 2% of those from B are defective and 1.5% of those from C are defective.
Firm A supplies 45%, Firm B supplies 25% and Firm C supplies 30% of the microprocessors.

What is the probability that a randomly selected automobile manufactured by the company has a defective
microprocessor?

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