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.

Question

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.

drwls · Accepted Answer

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

Anonymous · Answer

scores on the sat verbal test in recent years follow approximately the n(504,111) distribution. the proportion of students between 450 and 550 is