SOLUTION: An inspector tests a factor run of 4,000 pens she selects 100 pens and finds that 3 are defective about how many pens in the factory run should she expect to be defective

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Question 936732: An inspector tests a factor run of 4,000 pens she selects 100 pens and finds that 3 are defective about how many pens in the factory run should she expect to be defective
Answer by 428225(90) About Me  (Show Source):
You can put this solution on YOUR website!
4000/100=40
3*40=120
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She should expect 120 pens to be defective in the factory run.