The average grade for a quiz is 78, and the standard deviation is 8. If 15% of the class is given A's, and the grades are curved to follow a normal distribution: a. What is the lowest possible A? b. What is the highest possible B? c. Find the fifth decile.
The average grade for a quiz is 78, and the standard deviation is 8. If 15% of the class is given A's, and the grades are curved to follow a normal distribution: a. What is the lowest possible A? b. What is the highest possible B? c. Find the fifth decile.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 9PT
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The average grade for a quiz is 78, and the standard deviation is 8. If 15% of the class is given A's, and the grades are curved to follow a
a. What is the lowest possible A?
b. What is the highest possible B?
c. Find the fifth decile.
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