Homework Help: Statistics

Posted by Rae on Saturday, November 24, 2012 at 8:00am.

Scores on the SAT verbal test in recent years follow approximately N(504,111) distribution. What is the proportion of students scoring between 450 and 550? How high must a student score to place in the top 10% of all students taking the SAT? Please show the steps to obtaining this answer.

Statistics - drwls, Saturday, November 24, 2012 at 8:22am
Try using
http://psych.colorado.edu/~mcclella/java/normal/accurateNormal.html
(a) Proportion between 450 and 550: 34.7%
(b) Top 10% cutoff score: 646

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