Mean of 2, 4, 6, and 8
Add 2 + 4 + 6 + 8 = 20, then divide by 4. The mean uses every value, so outliers would pull it.
Mean, median, and other summaries of a listed data set.
Add 2 + 4 + 6 + 8 = 20, then divide by 4. The mean uses every value, so outliers would pull it.