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April 23, 2026, 04:02:29 pm

Author Topic: normal distribution  (Read 630 times)  Share 

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scatteam_2

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normal distribution
« on: May 12, 2011, 10:29:03 pm »
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the scores on an exam are normally distributed with mean = 30 and s.d= 7

A) wat percent have scores between 30 and 40?
b) what score will place a student in the top 5%?