Question: The overall grade of a statistics class has a normal distribution with mean of 83.5and standard deviation of 5.3. The instructor decides letter grades of

The overall grade of a statistics class has a normal distribution with mean of 83.5and standard deviation of 5.3. The instructor decides letter grades of students so that40% gets B or higher grade. Find theminimum overall grade a student should get so that the studentgets B or higher grade.

(keep 1decimal place)

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