Wednesday
August 27, 2014

Homework Help: math

Posted by chase on Friday, November 7, 2008 at 3:42pm.

For a class of 43 students, for a certain test, the mean grade is 67 and the standard deviation is 7.

a) how many students should receive a C?
b) how many students should receive a B?
c) what score would be necessary to obtain an A?

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