People Data Scientist Interview Questions
The questions to prepare for a People Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Define a success metric for a new feature that captures real user value, not just raw usage.
PeopleAssesses ability to define actionable evaluation metrics for recommendation systems.
PeopleIdentify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
PeopleDetermine A/B test sample size from baseline rate, MDE, significance level, and power, then validate the calculation through simulation.
PeopleExplain how RANK() and DENSE_RANK() handle ties differently in ordered SQL results such as leaderboards.
PeopleInvestigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.
PeopleAssesses your understanding of hypothesis testing and decision-making from results.
PeopleTests communication clarity and correct interpretation of hypothesis testing concepts.
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Write a SQL query to identify the top 10% of creators based on engagement metrics over the last 30 days. Use the provided creators and creatorengagements ...
TikTokRank Pinners by promoted Pin engagement and return the top 10% using aggregation and window functions.
PinterestRank media channels within each Omnicom Health campaign and return the three highest engagement totals.
Omnicom Health