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OpenStudy (anonymous):
When Mrs. Myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. This means that 95% of her students scored between which two scores?
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OpenStudy (anonymous):
this should help you http://en.wikipedia.org/wiki/68%E2%80%9395%E2%80%9399.7_rule the article says that 95% of the students scored within 2 standard deviations from the mean.(that is mean +2*standard deviation AND mean -2*standard deviation)
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