Mathematics, 19.03.2021 04:40, ray2220

A humanities 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 60%60% C: Scores below the top 40%40% and above the bottom 23%23% D: Scores below the top 77%77% and above the bottom 8%8% F: Bottom 8%8% of scores Scores on the test are normally distributed with a mean of 7070 and a standard deviation of 9.69.6. 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 13%...