Top 50
Prep plan
Updated weekly · Last refresh Oct 18

GEN Data Scientist Interview Questions

The questions to prepare for a GEN Data Scientist interview. Questions from real interview reports rank first. Updated daily.

50questions
~7htotal time
Track your progressSign up free to work through all 50 questions and resume where you left off.
Start practicing free →
1
System DesignStart here. 4 questions · ~32 min
2
Machine Learning9 questions · ~72 min
Designing Predictive ModelsMedium

Tests end-to-end modeling workflow from problem definition to evaluation and iteration.

financial productspredictive modelingGEN
More Machine Learning questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
Statistics & Probability6 questions · ~48 min
Statistical SignificanceMedium

Tests understanding of hypothesis testing, p-values, and practical interpretation.

Hypothesis TestingData AnalysisStatistical SignificanceGEN
More Statistics & Probability questions with a free account
4
A/B Testing & Experimentation5 questions · ~40 min
A/B Test Design ApproachMedium

Tests end-to-end experimentation planning from hypothesis to analysis and decisioning.

experiment designA/B TestingGEN
More A/B Testing & Experimentation questions with a free account
5
SQL & Data Manipulation8 questions + 3 drills · ~94 min
6
Model Evaluation4 questions · ~32 min
Bias Variance Trade-offMedium

Tests your understanding of generalization and how you diagnose underfit versus overfit in GEN models.

performanceModel EvaluationGEN
More Model Evaluation questions with a free account
7
More topics14 questions · ~112 min
Challenges With Large DatasetsMedium

Tests your practical experience with performance, memory, and scalability constraints.

challengeslarge datasetsdata handlingGEN
Designing Engagement MetricsMedium

Tests metric design thinking and alignment to user behavior and business goals.

product metricsuser engagementGEN
More questions with a free account
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.