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

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.

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.

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 in Excel by first selecting the range you want to depict, and then using the dropdown menu to select the desired chart.

Learn about bar charts with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Posted in hardware, Retrocomputing Tagged 70s, bar graph, comparator, daylight readable, display, incandescent, led, machined aluminum, minitron, retro, wamco ← The Naughty AIs That Gamed The System ...

Shared on Facebook and Instagram, posts include a bar graph showing “murder of blacks and whites in the US, 2013” broken down by the races of the perpetrators. While the graph itself is ...

New study suggests that when forecasting trends, reading a bar chart versus a line graph biases our judgement Date: January 28, 2023 Source: City University London Summary: A new study suggests ...