##### Example

a) Find the mode in the given data set: 2, 5, 6, 3, 5, 3, 8, 5, 9, 1

Write the data set in the ascending order: 1, 2, 3, 3, 5, 5, 5, 6, 8, 9

Then pick the data set that is repeated more: 5

b) Find the mode in the given data set: 1, 5, 7, 8, 6, 13, 21

Write the data set in the ascending order: 1, 5, 6, 7, 8, 13, 21

As we can see all the data is repeated in the same number of time

So, there is no data for this data set

c) Find the mode in the given data set: 2, 3, 2, 3, 6, 4, 6, 7, 9.

Write the data set in the ascending order: 2, 2, 3, 3, 4, 6, 6, 7, 9

As we can see there are three numbers that are repeated the same number of time: 2, 3 and 6

So, there are three modes: 2, 3 and 6.