Question
Exam grades across all sections of introductory statistics at a large university are approximately normally distributed with a mean of 72and a standard deviation of
Exam grades across all sections of introductory statistics at a large university are approximately normally distributed with a mean of 72and a standard deviation of 11. Use the normal distribution to answer the following questions.
A.) What percent of students scored above a 92?
Round your answer to one decimal place.
____ %
B.)What percent of students scored below a 58?
Round your answer to one decimal place.
____ %
C.)If the lowest 8%of students will be required to attend peer tutoring sessions, what grade is the cutoff for being required to attend these sessions?
Round your answer to one decimal place.
Cutoff Grade = ____
D.)If the highest 9%of students will be given a grade of A, what is the cutoff to get an A?
Round your answer to one decimal place.
Cutoff Grade = ____
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