The average grade of second year Business Management students in a certain college is normally distributed with a mean of 84 and a standard deviation of 5. What is the smallest interval that contains the middle 90% of scores of the said students? Use whole numbers as the bounds of your interval. If your answer is 60-80, write: 60 to 80.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The average grade of second year Business Management students in a certain college is normally distributed with a mean of 84 and a standard deviation of 5. What is the smallest interval that contains the middle 90% of scores of the said students?

Use whole numbers as the bounds of your interval. If your answer is 60-80, write: 60 to 80.

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