February 22, 2017

Homework Help: math

Posted by Andrew on Sunday, March 10, 2013 at 11:17pm.

The breaking strength (in pounds) of a certain new synthetic is normally distributed with a mean of 175 and a variance of 4. The material is considered defective if the breaking strength is less than 170 pounds. What is the probability that a single, randomly selected piece of material will be defective. Give the answer to four decimal places.

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