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27. For the item 26, if a chair chosen randomly and found to be defective, what is the probability that it was made by the first worker? (a) 46% (c) 13% (b) 33% (d) 9%

27. For the item 26, if a chair chosen randomly and found to be defective, what is the probability that it was made by the first worker? (a) 46% (c) 13% (b) 33% (d) 9%

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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26. Four workers work in a small factory assembling chairs in which of them respectively assembles 30%, 30%, 20%, and 20% of the chairs. From the past record, it is know that each of the workers are responsible for 7%, 5%, 3%, and 2% of defective chairs, respectively. Suppose Chat a chair is chUsen at random, what is the probability that the chair is defective? (a) 0.021 (c) 0.042 (b) 0.036 (d) 0.046 27. For the item 26, if a chair chosen randomly and found to be defective, what is the probability that it was made by the first worker? (a) 46% (c) 13% (b) 33% (d) 9%
Transcribed Image Text:26. Four workers work in a small factory assembling chairs in which of them respectively assembles 30%, 30%, 20%, and 20% of the chairs. From the past record, it is know that each of the workers are responsible for 7%, 5%, 3%, and 2% of defective chairs, respectively. Suppose Chat a chair is chUsen at random, what is the probability that the chair is defective? (a) 0.021 (c) 0.042 (b) 0.036 (d) 0.046 27. For the item 26, if a chair chosen randomly and found to be defective, what is the probability that it was made by the first worker? (a) 46% (c) 13% (b) 33% (d) 9%
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