RELX Data Scientist Interview Questions
The questions to prepare for a RELX Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Calculate each active RpmGlobal Enterprise Planning user's 30-day rolling average of daily activity.
RELXExplain how to clean nulls and inconsistent values in SQL before analytics, including when to filter, standardize, or impute.
RELXCount valid daily interactions and return the top three users using aggregation and deterministic ranking.
Combine joins, aggregations, and window functions to compare conversion and order metrics across A/B test variants.
InstacartA treatment shows a positive lift, but the confidence interval is wide. Explain how to judge actionability and decide whether to ship or gather more evidence.
RELXDesign an end-to-end A/B test for a pricing page, including MDE, guardrails, analysis plan, and a ship decision.
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Explain what a p-value means, how it relates to statistical significance, and how to describe it clearly to non-technical stakeholders.
RELXAssesses your awareness of false positives and error-rate control in experimentation.
RELXDefine a success metric for a new feature that captures real user value, not just raw usage.
RELXA framework for deciding which features should ship first when building a new product.
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