Question 1008366
Let's say there are 100,000 chips total


44% of the chips are made in St. Louis, so 0.44*100,000 = 44,000 chips are made in St. Louis


The remaining 100,000 - 44,000 = 56,000 chips are made in Chicago.


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" 0.75% of the chips produced in St. Louis are defective" which means (0.75/100)*44,000 = 330 chips are defective at the St. Louis plant.


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There are 330 chips that are defective AND that are produced at the St. Louis plant


This is out of 100,000 chips total


Divide the two values: 330/100,000 = 0.0033
 = 0.33%
 
 
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Question: What is the probability that a randomly chosen computer chip produced by this company is defective and was produced in St. Louis?


Answer: 0.33%