Act Digital Data Scientist Interview Questions
The questions to prepare for a Act Digital Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Calculate three-day rolling average sales by region using aggregation, joins, and PostgreSQL window functions.
Act DigitalExplain practical SQL techniques to preserve data integrity when combining multiple data sources.
Act DigitalCombine joins, aggregations, and window functions to compare conversion and order metrics across A/B test variants.
InstacartCount valid daily interactions and return the top three users using aggregation and deterministic ranking.
Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.
Act DigitalIdentify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Act DigitalExplain your approach to model evaluation, including how you choose and interpret metrics for different ML problems.
Act DigitalAssesses your incident triage and root-cause analysis using metrics and data checks.
Act DigitalEvaluates how you translate product goals into measurable, reliable metrics.
Act DigitalAssesses your ability to evaluate and mitigate bias and fairness risks in ML systems.
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