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Mathematics, 08.11.2021 09:10 izzynikkie

An English professor assigns letter grades on a test according to the following scheme. A: Top 14% of scores

B: Scores below the top 14% and above the bottom 57%
C: Scores below the top 43% and above the bottom 24%
D: Scores below the top 76% and above the bottom 8%
F: Bottom 8% of scores

Scores on the test are normally distributed with a mean of 69.6 and a standard deviation of 9. Find the numerical limits for a D grade. Round your answers to the nearest whole number, if necessary.

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