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Creating a Bar Chart
(KS2, Year 4)

homestatisticscreating a bar chart

Creating a Bar Chart

A bar chart is a useful way to present data. Imagine a teacher asked their class what their favorite colour was. Favorite colors of class

How to Create a Bar Chart

Creating a bar chart is easy. For each colour, we draw a bar as high as the number of students who prefer that colour.

Question

Draw a bar chart to show the favorite colours of the class.

Step-by-Step:

1

Find how many students prefer each colour. It may help to make a frequency table to show how many students prefer each colour. Show how many students prefer each color. Make a frequency table. We can create a bar chart from this frequency table.

2

Draw a horizontal axis. List the colours along this axis. The horizontal axis of the bar chart. The colors are listed along the axis. The axis is labelled. Don't forget: Label the axis. In our example, the axis shows the class's favorite colour, so we have labelled the axis Favorite colour.

3

Draw a vertical axis. This axis will show the number of students who prefer each colour. Choose a suitable scale for the axis. from the frequency table in Step 1, we see that the number of students who prefer each colour is either 10 or 15. We label the axis up to 15, going 5 at a time. The vertical axis of the bar chart is added. Don't forget: Label the axis. In our example, the axis shows the number of students who prefer each colour, so we have labelled the axis Number of students. Now we draw the bars.

4

10 students favorite colour is Blue. We draw a bar of height 10 above Blue. A bar of height 10 is drawn above the color blue.

5

15 students favorite colour is Red. We draw a bar of height 15 above Red. A bar of height 15 is drawn above the color red.

6

10 students favorite colour is Yellow. We draw a bar of height 10 above Yellow. A bar of height 10 is drawn above the color yellow.

7

The bar chart should be given a title. A title is a sentence which describes what the bar chart is showing.

Answer:

We have created the bar chart: A title is added to the bar chart.

Lesson Slides

The slider below gives another example of creating a bar chart.
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This page was written by Stephen Clarke.

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Interactive Widget

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What Is a Bar Chart?

A bar chart (or bar graph) is a chart which uses bars to present data. The height of each bar shows how often (the frequency) each value appears in the data.