Suppose that, for a certain exam, a teacher grades on a curve according to the graph shown below. It is known that the grades follow a normal distribution with a mean of 40 and a standard deviation of 6. There are 45 students in the class. What score would be necessary to obtain a B?

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The Answer of Suppose that, for a certain exam, a teacher grades on a curve according to the graph shown below. It is known that the grades follow a normal distribution with a mean of 40 and a standard deviation of 6. There are 45 students in the class. What score would be necessary to obtain a B?

Suppose That, for a Certain Exam, a Teacher Grades on a Curve