Control charts that monitor the dispersion or variability of the process are
A)P-charts.
B)C-charts.
C)R-charts.
D)X-bar charts.

Question

Quizplus · Accepted Answer

R-charts, also known as range charts, are used to monitor the variability of a process. They plot the range of each sample taken from the process, which reflects the dispersion of the data. P-charts and C-charts are used to monitor the proportion or count of defects in a process, while X-bar charts are used to monitor the average or central tendency of the process.

Control Charts That Monitor the Dispersion or Variability of the Process