SOLUTION: A man reports the final scores in his statistics course are normally distributed with a mean of 72 and a standard deviation of 5. He assigns grades such that the top 15% of the stu

Question 928886: A man reports the final scores in his statistics course are normally distributed with a mean of 72 and a standard deviation of 5. He assigns grades such that the top 15% of the students receive an A. What is the lowest score a student can receive to earn an A?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
mean of 72 and a standard deviation of 5.
5(invNorm(.85) + 72 = x
5(1.0364) + 72 = 77.182
78 is the lowest score a student can receive to earn an A
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