February 25, 2017

Homework Help: elementary math

Posted by Sabrina on Monday, May 16, 2011 at 9:27pm.

Sabino took the ACT in 2003 and received a composite score of 22. If the mean and standard deviation for that year were, respectively, 20.8 and 4.8, what percent of all of the students who took the exams scored better than him?

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