My Reading on ASQ CQA HB Part V Part 2
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Charlie Ch<strong>on</strong>g/ Fi<strong>on</strong> Zhang<br />
<strong>Part</strong> VD1<br />
Chapter 21<br />
Process Variati<strong>on</strong>/<strong>Part</strong> VD<br />
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VD1. Comm<strong>on</strong> And Special Causes (Theory Of Variati<strong>on</strong>)<br />
Variati<strong>on</strong> is inherent; it exists in all things. No two entities in the world have exactly the same measurable<br />
characteristics. The variati<strong>on</strong> might be small and unnoticeable without the aid of precise and discriminative<br />
measuring instruments, or it might be quite large and easily noticeable. Two entities might appear to have the<br />
same measurement because of the limitati<strong>on</strong>s of the measuring device.
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