Mean

An average of a set of scores or values.

An arithmetic mean of a group of numbers is the value produced by dividing the sum of the numbers by the total of all the members of the group.

A median is a value in a group of numbers which has as many other numbers larger than it as there are numbers smaller, that is, the ‘middle’ number in the number group.

The mode is the value appearing most frequently in a group of numbers.

Average

The level, amount, or degree to which something, e.g., a numerical value, is or is regarded as typical of a group or class of people or things;

(see also: distribution, standard deviation, statistic)