Home > Pre-algebra > Central Tendency > Mode Of A Dataset

## Mode Of A Dataset

#### Introduction

The mode of a set of numbers is the value which appears most often in the set.#### Terms

**Mode**- The mode is the number which appears most frequently.

## Lesson

To find the mode of a set of numbers, simply determine which number appears most frequently. Of course, there may be two or more numbers which appear the same amount of times. In that case, both numbers are the mode.

For example, the mode of the set of numbers is 4, since it appears four times.

The mode of the set of numbers is the numbers 1 and 5, since they both appear three times.

## Examples

#### Find the Mode (Example #1)

Find the mode of the dataset

Right now the numbers are out of order, so it is difficult to tell which number appears most often. So first put the numbers in order:

The number that appears most often is 1, so 1 is the mode of the set

#### Find The Mean (Example #2)

Tyler bought some fruits for a function on consecutive days. Monday he bought 18 plums, Tuesday 12 plums, Wednesday 18 plums, and Thursday 2 plums. What is the mode?

The mode is the number that appears most often in a set of numbers. There is no formula to determine the mode of a list; you just have to find by hand which number appears most often.

Suppose we want to find the mode of this data set:

Right now the numbers are out of order, so it is difficult to tell which number appears most often. So first put the numbers in order:

2 appears once in the list

12 appears once in the list

18 appears twice in the list

The number that appears most often is 18, so 18 is the mode of the set

#### Find the Mode (Example #3)

Find the mode of the dataset

Right now the numbers are out of order, so it is difficult to tell which number appears most often. So first put the numbers in order:

The number that appears most often are . Since there is a tie, we say that the list has modes: