There are several different types of averages.
An average is one number that represents a set of numbers.
The MODE or the MODAL VALUE is simply the most frequently occuring number.....the one that appears most often in a list.
Example
Find the MODE of this set of numbers: 5, 4, 8, 4, 3, 3, 8, 4, 1
Answer
The MODE is 4 because it occurs three times, which is more than any other number.