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swetzbar

PLEASE HELP The verbal portion of the SAT exam has scores that are normally distributed. The mean of the scores is 500 with a standard deviation of 100. If you scored 625 on the verbal SAT, what percentage of all those taking the test scored below you?

  • one year ago
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  1. shaan_iitk
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    find z = (625 - 500)/100 = 1.25 then use norminv to find ... it should be close to 89 - 90 %ile..

    • one year ago
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