SDG Group Data Scientist Interview Questions
The questions to prepare for a SDG Group Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Calculate category-level average order value and return the five highest categories with deterministic tie-breaking.
Compare RANK, DENSE_RANK, and ROW_NUMBER by applying each to ordered employee scores.
Calculate three-day rolling user activity averages and classify behavior trends with SQL window functions.
Determine the sample size needed to detect a meaningful A/B test effect at a chosen significance level and power.
Explain what a p-value means, how it relates to statistical significance, and how to describe it clearly to non-technical stakeholders.
Define a success metric for a new feature that captures real user value, not just raw usage.
Investigate why a key KPI moved the wrong way after a product change and separate signal from noise.
Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Sign up to see every question
Create a free account to unlock this list and practice real interview questions.