An analysis of the grades on the first test in History 101 revealed that they approximate a normal
Curve with a mean of 75 and a standard deviation of 8. The instructor wants to award the grade of A
To the upper 10 percent of the test grades. What is the dividing point between an A and a B grade?
A) 80
B) 85
C) 90
D) 95
Correct Answer:
Verified
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