1. Prevention and inspection
2. Sampling and probability
3. Special causes and random causes
4. Tolerances and control limits
During control quality, in large projects, we may need to do more sampling checks, so team may need to have a working knowledge of statistical control processes (sampling and probability) to evaluate the data of control quality.
Option 1 (Prevention and inspection ) and especially inspection is what we do while performing control quality process.
( Reference to http://en.wikipedia.org/wiki/Statistica ... ss_control )
So , the correct Option # 2. Sampling and probability
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