Determine the BEST Measure of Center .
or the
When a data set has NO OUTLIERS, either the or the
is the best measure of center.
When a data set has ONE OR MORE OUTLIERS that pull the mean too far
away from the other values, the best measure of center is the
If the data set is NOT MADE UP OF NUMERICAL VALUES, use the
as the measure of center. This is the only measure of center
you could use, because it's impossible to calculate the mean or median of
data that is nonnumeric.