= Control line
{wiki=Control_line}
The term "control line" can refer to different concepts depending on the context. Here are a few common interpretations: 1. **Statistical Control Line**: In statistical process control, a control line is part of control charts used to monitor the behavior of a process over time. It represents the upper and lower control limits which help to determine if a process is in a state of control or if it is experiencing variability that could indicate a problem.
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