write a short note on control charts
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Step-by-step explanation:
कार्बन तांबा चांदी सोना इन व्हिच वाला कौन सा है कौन सा अलग पदार्थ इनमें से
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The control chart is a graph used to study how a process changes over time. Data are plotted in time order. A control chart always has a central line for the average, an upper line for the upper control limit, and a lower line for the lower control limit. These lines are determined from historical data.
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