In a certain assembly plant, three machines B,, B2 and B3, make 30%, 45%, and 25% of the products. It is known from past experience that 2%, 3% and 2% of the products made by each machine are defective. Now suppose that a finished product is randomly selected. What is the probability that it is defective?

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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Now suppose that a product was randomly selected and it is
defective. What is the probability that this product was made
by machine B3?
Transcribed Image Text:Now suppose that a product was randomly selected and it is defective. What is the probability that this product was made by machine B3?
Example 1- 33
In a certain assembly plant, three machines B, B, and B3,
make 30%, 45%, and 25% of the products. It is known from
past experience that 2%, 3% and 2% of the products made by
each machine are defective.
Now suppose that a finished product is randomly selected.
What is the probability that it is defective?
Transcribed Image Text:Example 1- 33 In a certain assembly plant, three machines B, B, and B3, make 30%, 45%, and 25% of the products. It is known from past experience that 2%, 3% and 2% of the products made by each machine are defective. Now suppose that a finished product is randomly selected. What is the probability that it is defective?
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