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September 22, 2014

Homework Help: Statistiscs

Posted by StudentD on Tuesday, August 28, 2012 at 2:13pm.

Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed.

What proportion of students consume an amount equal to or less than 6 cups a day?

How many cups would an individual at the 80th percentile drink?

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