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October 1, 2014

Homework Help: statistics

Posted by rebecca on Thursday, August 30, 2012 at 6:58pm.

A class test resulted in a mean score of 60% and a standard deviation of 15%. You scored 75%. Assuming the scores follow a normal distribution, and there are 200 in the class, how many students scored better than you? Give your answer to the nearest whole number.

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