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Mathematics, 07.03.2020 05:18 destineenikole17

An English professor assigns letter grades on a test according to the following scheme. A: Top 13% of scores B: Scores below the top 13% and above the bottom 60% C: Scores below the top 40% 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 77.4 and a standard deviation of 7.9. Find the numerical limits for a D grade. Round your answers to the nearest whole number, if necessary.

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An English professor assigns letter grades on a test according to the following scheme. A: Top 13% o...
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