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The scores on a final exam follow the normal curve with an average of 60 and an SD of 20. The instructor wishes to count the top 20% of the scores as A's, with the rest of the scores as B or lower. Which of the following final scores is the most suitable cutoff between the A's and the B's? 75 55 65 95 85

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Carlos Rodriguez <carlos@math.albany.edu>

This problem was contributed by a student. It is offered as it is with no warranty of any kind
Last modified: Thu Feb 11 12:26:41 EST 1999