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October 30, 2014

Homework Help: math

Posted by Anonymous on Friday, December 21, 2012 at 12:37pm.

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 173 and a variance of 9. The material is considered defective if the breaking strength is less than 167 pounds. What is the probability that a single, randomly selected piece of material will be defective?

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