Mathematics, 14.04.2020 16:50 hazeleyes2006
A history teacher assigns letter grades on a test according to the following scheme: A: Top 10% B: Scores below the top 10% and above the bottom 60% C: Scores below the top 40% and above the bottom 20% D: Scores below the top 80% and above the bottom 10% F: Bottom 10% Scores on the test are normally distributed with a mean of 70 and a standard deviation of 12.9. Find the numerical limits for each letter grade.
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A history teacher assigns letter grades on a test according to the following scheme: A: Top 10% B: S...
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