Determine the cutoffs for letter grade

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The final marks in a statistics course are normally distributed with a mean of 70 and a standard deviation of 10. The professor must convert all marks to letter grades. She decides that she wants 10%A's, 30%B's, 40%C's, 15%D's, and 5%F's. Determine the cutoffs for each letter grade.

Reference no: EM132847203

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