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Updated weekly · Last refresh Oct 17

Deepmind Data Scientist Interview Questions

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

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1
Machine LearningStart here. 13 questions · ~113 min
2
SQL & Data Manipulation3 questions + 1 drill · ~36 min
Rank Users by RevenueMedium
Practice

Rank EverC users within each region by positive total revenue with deterministic tie-breaking.

Window FunctionsRankingpartitioningDeepmind
Rolling Claims and Loss Ratio RankingHard
Practice
Practice drill

Calculate 30-day policyholder claim counts and rank regions by loss ratio using PostgreSQL window functions.

Window FunctionsLag/LeadDate FunctionsTravelers
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3
Behavioral & Leadership9 questions · ~78 min
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4
More topics11 questions · ~95 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 TestingDeepmind
Explain Cross-Validation in Model SelectionEasy

Explain what cross-validation is and why it matters when choosing between models.

Cross-ValidationAccuracyThreshold TuningDeepmind
Define Feature Success MetricsMedium

Framework for choosing a feature's primary success metric and guardrails before launch.

MetricsFeature PrioritizationProduct VisionDeepmind
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 IndicatorsDiagnosisDeepmind
Binary Search Tree ConceptEasy

Explain binary search tree ordering, core operations, complexity, and the effect of an unbalanced shape.

CommunicationLeadershipOwnershipDeepmind
Linear Regression Model AssumptionsEasy

Tests understanding of regression assumptions needed for reliable inference and prediction.

RegressionHypothesis TestingStatistical SignificanceDeepmind
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