Mean, Median, Mode, and Range
The "mean" is the "average" you're used to, where you add up
all the numbers and then divide by the number of numbers. The
"median" is the "middle" value in the list of numbers. To find the
median, your numbers have to be listed in numerical order, so
you may have to rewrite your list first. The "mode" is the value
that occurs most often. If no number is repeated, then there is
no mode for the list
The "range" is just the difference between the largest and
The chart above shows four different types of averages.
As you can see each one gives a different answer.