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July 5, 2015

Homework Help: statistics

Posted by Anonymous on Thursday, August 25, 2011 at 9:52pm.

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 170 and a variance of 4. The material is considered defective if the breaking strength is less than 166 pounds. What is the probability that a single, randomly selected piece of material will be defective?

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