# Bar Charts and the Types of Data

Bar charts can present the different types of data.

• Bar charts can present qualitative data (which is described in words).

The bar chart shown below shows the number of shapes:

• Bar charts can present quantative data (which is described in numbers).

Quantitive data can be discrete or continuous:

• Discrete data can only take certain values

The bar chart shown below shows the test scores (out of 10) of a class of students. The test scores can only be whole numbers, so they are discrete:

• Continuous data can take any value (within a range).

The bar chart shown below shows the heights of a group of friends. Heights can take any value within a range, so they are continuous:

Note: There are no gaps between the bars because continous data has no gaps in it.

Also note: A histogram is a type of bar chart for continuous data.

# More About Bar Charts and the Types of Data

##### Interactive Test
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Here's a second test on bar charts and the types of data.
Here's a third test on bar charts and the types of data.

# 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.

# What Is Data?

Data is a set of facts (such as numbers, measurements or words) that have been collected or measured.

Data can be reported, visualized and analyzed to help us learn and make decisions.