成人论坛

Watch: Calculating the mean, mode and median

Back to top

What is the median?

a chart showing the median is 6

The median is the middle value.

To find the median, order the numbers and see which one is in the middle of the list.

3, 3, 6, 13, 100

The median is 6.

If there are two middle values the median is halfway between them. This might not be a whole number.

a chart showing the median is 6
Back to top

What is the mode?

a chart showing the mode is 3

The mode is the number that appears the most.

To find the mode, order the numbers lowest to highest and see which number appears the most often.

3, 3, 6, 13, 100

The mode is 3.

a chart showing the mode is 3
Back to top

What is the mean?

a diagram showing 125 divided by 5 equals 25

The mean is the total of the numbers divided by how many numbers there are.

To find the mean, add all the numbers together then divide by the number of numbers.

6 + 3 + 100 + 3 + 13 125

125 梅 5 = 25

The mean is 25.

The mean is not always a whole number.

a diagram showing 125 divided by 5 equals 25
Back to top

What is the range?

a chart showing 100 minus 3 equals 97

The range is the difference between the biggest and the smallest number.

To find the range, subtract the lowest number from the biggest number.

3, 3, 6, 13, 100

100 - 3 = 97

The range is 97.

a chart showing 100 minus 3 equals 97
Back to top

Activity 1

Back to top

Activity 2

Back to top

Play our fun maths game Guardians: Defenders of Mathematica. game

Use your times tables and more maths skills to defeat monsters and reclaim the Kingdom of Mathematica

Play our fun maths game Guardians: Defenders of Mathematica
Back to top

More on Tables, graphs and charts

Find out more by working through a topic