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

An English professor assigns letter grades on a test according to the following scheme.

A: Top 9% of scores

B: Scores below the top 9% and above the bottom 63%

C: Scores below the top 37% and above the bottom 22%

D: Scores below the top 78% and above the bottom 6%

F: Bottom 6% of scores

Scores on the test are normally distributed with a mean of 66.9 and a standard deviation of 9.2. Find the numerical limits for a D grade. Round your answers to the nearest whole number, if necessary.

Answer

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numerical limit 1 and numerical limit 2

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Expert Solution

orchestra answered 11 months ago

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