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Statistics

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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 -

    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

  • Statistics -

    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

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