Question: An investigator has a computer file showing family incomes for 1,000 sub- jects in a certain study. These range from $5,800 a year to $98,600

An investigator has a computer file showing family incomes for 1,000 sub-

jects in a certain study. These range from $5,800 a year to $98,600 a year. By accident, the highest income in the file gets changed to $986,000.

(a) Does this affect the average? If so, by how much?

(b) Does this affect the median? If so, by how much? p-968

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