Savvysherpa Data Scientist Interview Questions
The questions to prepare for a Savvysherpa Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Explain how to reduce overfitting using regularization, validation, and model selection.
SavvysherpaExplain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.
SavvysherpaTests your ability to write correct SQL joins for real analytics workflows.
SavvysherpaUse ROW_NUMBER() to keep the earliest created_at 'Repl created' per entity and return out-of-order duplicates to delete.
Replit
QuantcastBuild a daily series and compute a 30-day trailing moving average of task bookings using window functions.
TaskRabbit
RBCCompute daily paid GMV and a 7-day trailing moving average using aggregation + window functions.
Balyasny Asset Management
Amazon Development Center U.S.Approach for choosing launch success metrics, including a north star, leading indicators, and clear success criteria.
SavvysherpaInvestigate why a key KPI moved the wrong way after a product change and separate signal from noise.
SavvysherpaIdentify major online experiment pitfalls and explain how they can bias results in a streaming product A/B test.
SavvysherpaTests statistical reasoning for hypothesis testing and significance decisions.
SavvysherpaTests your understanding of metrics, validation strategy, and tradeoffs for model quality.
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