Mathematics, 31.03.2020 01:05 LlayahHarbin
A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12%12% of scores B: Scores below the top 12%12% and above the bottom 62%62% C: Scores below the top 38%38% and above the bottom 17%17% D: Scores below the top 83%83% and above the bottom 7%7% F: Bottom 7%7% of scores Scores on the test are normally distributed with a mean of 75.275.2 and a standard deviation of 9.89.8. Find the minimum score required for an A grade. Round your answer to the nearest whole number, if necessary.
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A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12%...
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