chodister353
09.12.2021 •
Mathematics
A sociology professor assigns letter grades on a test according to the following scheme. A: Top 9% of scores B: Scores below the top 9% and above the bottom 63% C: Scores below the top 37% and above the bottom 24% D: Scores below the top 76% and above the bottom 7% F: Bottom 7% of scores Scores on the test are normally distributed with a mean of 73.9 and a standard deviation of 9.9. Find the numerical limits for a D grade. Round your answers to the nearest whole number, if necessary.
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