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July 31, 2015

Homework Help: Math

Posted by Anonymous on Tuesday, June 19, 2012 at 2:48pm.

if there are 145 test questions, and the mean of the test scores for a class is 100 with a standard devation of 15, what percentage of the people taking the test would have the following scores: scored b/w 100 &115, scored b/w 100 & 115,scored b/w 0 & 100, scored b/w 0 & 145, or scored b/w 0 &85?

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