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August 22, 2014

Homework Help: statistics probability

Posted by koo on Sunday, November 14, 2010 at 4:06am.

Alice earned a score of 940 on an IQ test.The mean test score was 850 with a standard deviation of 100.(Assume that test scores are normally distributed).

Q1a).What proportion of students had a higher score than alice?

Qb)Find the score exceeded by 2.5% of the students.

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