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OpenStudy (anonymous):
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?
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OpenStudy (anonymous):
find z = (625 - 500)/100 = 1.25 then use norminv to find ... it should be close to 89 - 90 %ile..
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