Multiple Choice
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
Correct Answer:
Verified
Q1: Tabulation of a strike vote showed that
Q3: Two normal distributions are compared. One has
Q4: Bottomline Ink, a forms management company, fills
Q5: Two business major students, in two different
Q6: Replacement times for TV sets are normally
Q7: A statistics student receives a grade of
Q8: The distribution of the annual incomes of
Q9: A loaf of bread is normally distributed
Q10: (i. The mean of a normal probability
Q11: What is the distribution with a mean