Educational scope
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The small retail dataset is fictional and intentionally limited. It does not establish real market conditions or justify a real operational decision. Apply appropriate domain review, data governance and professional judgment before relying on any method in practice.
Safe use of examples
Run code and formulas in a separate practice environment. Back up your work, inspect commands and adapt syntax to your software version. Do not execute setup instructions against production systems. You are responsible for permissions, security, lawful access to data and validation of any results you use.
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Using the material
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Independence and references
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Availability and accuracy
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