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The blood glucose of a population of lesser dodos had blood glucose levels with mean =65...

The blood glucose of a population of lesser dodos had blood glucose levels with mean =65 and SD =25 with the units being mg per 100 ml (= mg/dL).

As a college professor teaching a difficult lower division course you have decided on the following distribution of grades: A, upper 10%; B, next 20%; C, next 50%; D, next 15%; F, lowest 5%. The class (population) average number of points at the end of the quarter is 923 with a standard deviation of 101. Determine the number of points needed for each letter grade.

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