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. The data you ...

The Key to Optimizing Your Business Processes Monitoring Process Performance with X-Bar and R Charts Mastering the Basics: The Fundamentals of Statistics and Inference The post The Role of X-Bar ...

The title tells you what the bar chart is about. The vertical and horizontal lines are called axes. The horizontal line is called the 𝒙-axis. The vertical line is the 𝑦-axis. Both axes are ...