How to Find the Mode

Finding the Mode

We can find the mode of a set of numbers.

Imagine a teacher wanted to find the class's average test score in mathematics.

How to Find the Mode

The mode is found by counting how often each number appears in a set and selecting the one that appears most often.

Question

What is the mode of the test scores below?

Step-by-Step:

1

List the numbers in numerical order (going from the smallest to the largest number).

6 7 7 9 10

2

Count how often each number appears.

  • 6 appears 1 time.

  • 7 appears 2 times.

  • 9 appears 1 time.

  • 10 appears 1 time.

3

Find the number that appears most often.

Answer:

The mode of the test scores is 7.

How Find the Mode When There Are More Than One

Sometimes there is more than one mode in a set of numbers.

Question

What is the mode of the test scores below?

Step-by-Step:

1

List the numbers in numerical order (going from the smallest to the largest number).

6 7 7 9 10 10

2

Count how often each number appears.

  • 6 appears 1 time.

  • 7 appears 2 times.

  • 9 appears 1 time.

  • 10 appears 2 times.

3

Find the number that appears most often.

Answer:

The modes of the test scores are 7 and 10.

Slider

The slider below gives another example of finding the mode.

Open the slider in a new tab

See Also

What is a frequency table? Finding the mode from a frequency table Learn more about the mean ( interactive widget)