An investigator has a file showing family incomes for 1000 subjects in a certain study. These range from $6,000 a year to 90,000 a year. By accident, the highest income in the file gets changed to $900,000. Does this affect the average

Question

Mathematics

Jaylene Roberson

20 June, 03:09

An investigator has a file showing family incomes for 1000 subjects in a certain study. These range from $6,000 a year to 90,000 a year. By accident, the highest income in the file gets changed to $900,000. Does this affect the average

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Answers (1)

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Kate · Answer 1

Yes it does

Step-by-step explanation:

The average is shifted to higher side if higher number is present in a data set.

suppose the following set of data

20, 40, 60, 100

avergae of data = (20+40+60+100) / 4 = 55

now suppose following set of data

20,40,60,1000

average of data = (20+40+60+1000) / 4 = 280