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?

math  bobpursley, Friday, November 7, 2008 at 5:26pm
Nuts to this. Critieria for A, B, C is not something that is agreed to . Do you have some criteria for A, B, and C?

math  chase, Saturday, November 8, 2008 at 1:28pm
sorry that's all the question says. My teacher is weird she gives questions that say nothing and expects us to no what they mean.
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