A psychology study found that bar graphs representing averages were prone to misinterpretation. Plus, how to improve your data literacy.

You can make a bar graph in Excel by first selecting the range you want to depict, and then using the dropdown menu to select the desired chart.

About one in five graph readers categorically misinterpreted bar graphs that depicted averages. "These readers sketched all, or nearly all, of the data points below the average," said Wilmer.

Bar charts shorten time to insight, enable straightforward comparisons between different items and data sets, and bring a clean visual representation to your audience. While there are certainly ...

How to Make a Bar Graph Using OpenOffice Writer. Add graphs and charts to your Apache OpenOffice documents and bring your numbers and statistics to life. You can insert the graphs directly into ...

These minitron bar graph units could only be viewed from the top, and were apparently high in cost and low in availability.

You can make a bar graph on Google Sheets to make the data in your spreadsheet more digestible, useful, and visually appealing.

The takeaway: every bar graph needs a zero on its scale. If you see one without a zero, be careful. In a future post I'll discuss whether line graphs and other graphs also need a zero on their scales.