n a bolt factory machines A, B and C manufacture respectively 25%, 35% and 40% of the total. Of their output 5, 4, 2 percent respectively are defective bolts. A bolt is drawn at random from the product and is found to be defective. What are the probabilities that it was manufactured by machines (i) A, (ii) B, and (iii) C ?

n a bolt factory machines A, B and C manufacture respectively 25%, 35% and 40% of the total. Of their output 5, 4, 2 percent respectively are defective bolts. A bolt is drawn at random from the product and is found to be defective. What are the probabilities that it was manufactured by machines (i) A, (ii) B, and (iii) C ?

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

In a bolt factory machines A, B and C manufacture respectively 25%,
35% and 40% of the total. Of their output 5, 4, 2 percent respectively are
defective bolts. A bolt is drawn at random from the product and is found to
be defective. What are the probabilities that it was manufactured by
machines (i) A, (ii) B, and (iii) C ?

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