Which of the following tools can be used to identify process variation?

Control charts are essential tools for monitoring and analyzing process variation. They help distinguish between common cause variation (inherent to the process) and special cause variation (due to specific events or factors). By plotting data points over time and comparing them to control limits, control charts provide insights into process stability and performance. When points fall outside the control limits, it indicates potential issues that need investigation. Control charts are widely used in quality management to maintain process control and detect deviations from expected performance1.