Key Points X-bar and R charts are useful control charts for use with rational subgroups. X-bar measure between-sample variation. R charts measure within-sample variation. All processes vary.

When collecting, analyzing, and sharing data in an Excel chart, it is helpful to be able to represent it in a manner that is quickly and easily understood. Creating a bar or column graph is a ...

New study suggests that when forecasting trends, reading a bar chart versus a line graph biases our judgement Date: January 26, 2023 Source: City University London ...