Asked by Jeremy
The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. What percentage score above 1300? What percentage score above 800? What percentage score below 1200? Above what score do 20% score? Above what score do 20% score?
How do I calculate percentages with SD and mean?
How do I calculate percentages with SD and mean?
Answers
Answered by
Damon
http://davidmlane.com/hyperstat/z_table.html
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