The mode is the value that occurs most often. The mode is the only average that can have no value, one value or more than one value. When finding the mode, it helps to order the numbers first.

- Question
Find the mode of each of the following sets of numbers:

a)

b)

c)

a) Start by placing the numbers in order:

The number occurs most often so the mode is .

b) Start by placing the numbers in order:

The numbers and occur more often so the modes are and .

c) Start by placing the numbers in order:

Since each value occurs only once in the data set, there is no mode for this set of data.

In this frequency table, the mode is the value with the highest frequency:

The modal shoe size is because more people wear size than any other size.