math
posted by chase .
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?

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?

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.