## 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.## 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.
We can create a bar chart from this frequency table.

# 2

Draw a horizontal axis. List the colours along this axis.

**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.**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**.

# 5

**15**students favorite colour is

**Red**. We draw a bar of height

**15**above

**Red**.

# 6

**10**students favorite colour is

**Yellow**. We draw a bar of height

**10**above

**Yellow**.

# 7

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