global consulting firm Data Scientist Interview Questions
The questions to prepare for a global consulting firm Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Decide whether a metric move is statistically significant or just random variation.
Explain what statistical significance means and why it matters when interpreting experimental or analytical results.
Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Calculate the monthly spending trends for customers using window functions and joins.
Diagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.
Assesses your product sense for defining measurable outcomes tied to business goals.
Tests your understanding of modeling assumptions and diagnostic validation techniques.
Explain how RANK(), DENSE_RANK(), and ROW_NUMBER() differ when ordering tied clinical trial results.
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Deduplicate customer records with ROW_NUMBER, retaining the latest record and reporting duplicate counts.
IBM
NewWave Telecom & TechnologiesDelete duplicate contact records while retaining the most recently updated row for each email address.
BNSF Railway
Revature