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Problem 20 (1990 AJHSME)

AJHSMEEasy

From module Mean, Median, Mode, and Harmonic Mean

Problem

The annual incomes of 10001000 families range from 82008200 dollars to 9800098000 dollars. In error, the largest income was entered on the computer as 980000980000 dollars. The difference between the mean of the incorrect data and the mean of the actual data is

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