Bar charts

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Explainer Video

Tutor: Alice


Bar Charts

In a nutshell 

Bar charts help you to visualise data at a glance. They make information involving 'how many' easy to compare and understand. 



How many of something.


The amount that the frequency axis goes up in.

Interpreting bar charts

A bar chart has two labelled axes: one for frequency and one for categories. The height of each bar represents the frequency of items in that category.

Example 1

Bar chart to show students' favourite animals

Maths; Statistics; KS2 Year 3; Bar charts

Note: The scale of a bar chart could be anything from ones to twos to hundreds to thousands!

Presenting data using bar charts

You can draw a bar chart from a table to present the data in a more visual way.

Drawing bar charts


Draw and label the axes: one for frequency and one for the categories.
Pick an appropriate scale for the frequency.
Draw the bars so that their height represents the right frequency.

Example 2

Here the bar chart has been drawn from the tally chart shown below.       


DayTallyTotalMonday2Tuesday5Wednesday4Thursday0Friday3\begin{array}{c|c|c}\text{Day}&\text{Tally}&\text{Total} \\\hline\text{Monday} & || & 2 \\ \hline\text{Tuesday} & \cancel{||||} & 5 \\\hline\text{Wednesday} & |||| & 4 \\\hline\text{Thursday} & & 0 \\\hline\text{Friday} & ||| & 3 \end{array}​​

 Bar chart to show carrots eaten by a rabbit on each day of the week.    

Maths; Statistics; KS2 Year 3; Bar charts

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FAQs - Frequently Asked Questions

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