Outliers can heavily affect averages, thresholds, and business reporting. In SQL workflows, analysts are often expected to identify unusual values and decide whether to remove, cap, or flag them before further analysis.
Explain how you would detect and handle outliers in a dataset using SQL. Your answer should cover:
The interviewer expects a practical conceptual answer: describe the methods, trade-offs, and how you would implement them in SQL at a high level. You do not need advanced statistical theory, but you should show sound judgment about data quality and business context.