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 ...

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

However, that data can then be represented on a graph, with axes corresponding to the different variables in the table. A horizontal axis on a graph corresponds to one variable from a data table.