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A computer science professor rewarded her students by giving each student 10 extra credit points on their last homework assignment. After 10 points were added

A computer science professor rewarded her students by giving each student 10 extra credit points on their last homework assignment. After 10 points were added to every score in the gradebook the mean was calculated and found to be M = 102. What was the mean value before the 10-points were added to every student's homework score

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