Top 39
Prep plan
Updated weekly · Last refresh Oct 17

MSD Data Scientist Interview Questions

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

39questions
~5htotal time
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1
SQL & Data ManipulationStart here. 7 questions + 2 drills · ~78 min
2
A/B Testing & Experimentation4 questions · ~33 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingMSD
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3
Machine Learning9 questions · ~75 min
Handle Highly Imbalanced ClassesMedium

Build a classifier for a highly imbalanced dataset and choose training and evaluation methods that surface rare positives.

Cross-ValidationFeature EngineeringSupervised LearningMSD
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4
Statistics & Probability8 questions · ~66 min
Correlation Between Categorical and ContinuousMedium

Assesses your statistical understanding of association measures across mixed variable types.

CorrelationMSD
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5
Product Sense3 questions · ~25 min
Evaluate Clinical Workflow ToolMedium

Assesses how you define success, measure outcomes, and reason about causal impact in healthcare.

MSD
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6
Behavioral & Leadership4 questions · ~33 min
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7
More topics4 questions · ~33 min
Diagnose a Metric Drop After LaunchMedium

Investigate why a key KPI moved the wrong way after a product change and separate signal from noise.

Lagging IndicatorsLeading IndicatorsDiagnosisMSD
Explain TF-IDF and Cross-EntropyMedium

Tests core NLP and ML loss-function understanding relevant to text modeling.

TF-IDFMSD
Explain Logistic Regression BasicsMedium

Tests your understanding of classification metrics and how they apply to logistic regression.

F1 ScoreMSD
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The finish line: interview-readyComplete all 39 questions plus 2 hands-on drills to finish this plan.