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July 28, 2014

Homework Help: statistics

Posted by Sabrina on Saturday, April 28, 2012 at 10:17pm.

A professor informs her class that a test is very difficult, but the grades will be curved. Scores for the test are normally distributed with a mean of 25 and a standards deviation of 5. If she curves the grades by adding 50 to each grade, What is the new mean? What is the new standard deviation?

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