. In Mathematics 135 the average final grade is 75.0 and the standard deviation is 10.0
Chapter 9, Problem 38(choose chapter or problem)
. In Mathematics 135 the average final grade is 75.0 and the standard deviation is 10.0. The professors grade distribution shows that 15 students with grades from 68.0 to 82.0 received Cs. Assuming the grades follow a normal distribution, how many students are in Mathematics 135?
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