February 20, 2017

Homework Help: prob and stats

Posted by br0Ok3 on Friday, October 15, 2010 at 1:13am.

The scores on an Economics examination are normally distributed with a mean of 77 and a standard deviation of 18. If the instructor assigns a grade of A to 16% of the class, what is the lowest score a student may have and still obtain an A? (Give your answer to two decimal places.)

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