Define: quality assurance, six sigma.

Define: quality assurance, six sigma.



Quality assurance:
- A way of preventing mistakes or defects in manufacturing products or when delivering services to customers
- In a machine learning context: anomaly detection

Six sigma:
- Set of techniques and tools for process improvement
- 99.99966% of products are defect-free products (3.4 per 1 million)
- 6 standard deviation from the process mean

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