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An art history professor assigns letter grades on a test according to the following scheme. A: Top 13%13% of scores B: Scores below the top 13%13% and above the bottom 56%56% C: Scores below the top 44%44% and above the bottom 21%21% D: Scores below the top 79%79% and above the bottom 9%9% F: Bottom 9%9% of scores Scores on the test are normally distributed with a mean of 79.779.7 and a standard deviation of 8.48.4. Find the numerical limits for a B grade. Round your answers to the nearest whole number, if necessary.
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An art history professor assigns letter grades on a test according to the following scheme. A: Top 1...
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