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March 29, 2015

Homework Help: stats

Posted by CM on Monday, September 28, 2009 at 3:49pm.

SAT math scores approx. follow a normal distribution, with mean 500 and standard deviation 100. What % of students should have an SAT math score above 500?

I think I use mean (500) + z-score * SD (100), but I do not know how to get the z-score?

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