The mode of a set of data is the value in the set that occurs most often.
The best way to find out the mode of a set of data is to rearrange the data so that it is ascending in order of smallest to largest and then to count how many times each number appears to find the most popular.
To find out the mode in statistics of ungrouped data, you have to find the number with the greatest frequency. E.g. How many times does a certain number appear.
A random set of numbers:
6, 3, 4, 1, 2, 5, 3
In order from smallest to largest:
1, 2, 3, 3, 4, 5 ,6
The number 3 occurs twice in this set, and appears more than any other number in the set. Therefore the mode is 3.