Solve the Problem. -Scores on a Test Are Approximately Normally Distributed with a Distributed

Multiple Choice

Solve the problem.
-Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students. What is the bottom cutoff for an A
Grade? Round your answer to the nearest whole number.

A) 80
B) 79
C) 90
D) 82