Adastra Group Data Scientist Interview Questions
The questions to prepare for a Adastra Group Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Calculate three-day campaign spend moving averages for active Adastra Group campaigns using a CTE and window function.
Build monthly signup cohorts with CTEs and joins to calculate month 0-2 retention for a self-serve product.
BILL
OpenAI
Red VenturesClean inconsistent CRM contacts by joining source tables, standardizing values, and flagging bad records.
AlphaSenseDescribe an A/B test you ran, what question it answered, how you measured success, and what you learned from the results.
Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
Define a success metric for a new feature that captures real user value, not just raw usage.
Explain what statistical significance means and why it matters when interpreting experimental or analytical results.
Evaluates practical experience building and operating data pipelines for ML workflows.
Assesses ability to communicate core machine learning concepts clearly and accurately.
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