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

question 308

Multiple Choice

Suppose that, for a certain exam, a teacher grades on a curve according to the figure shown below. It is known that the grades follow a normal distribution with a mean of 60 and a standard deviation of 4. There are 45 students in the class. What score would be necessary to obtain a B?

• A) 69
• B) 60
• C) 56
• D) 64
• E) 80

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