Top 15
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GeakMinds Data Scientist Interview Questions

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

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1
A/B Testing & ExperimentationStart here. 5 questions · ~45 min
Frequentist vs Bayesian for Long ExperimentsHard

Choose between frequentist and Bayesian inference for a long-running experiment while defining MDEs, guardrails, stopping rules, and ship criteria.

experiment designPeekingGuardrail MetricsGGeakMinds
Conflicting Experiment ResultsHard

Assess conflicting segment results by checking data quality, interaction effects, multiple testing, and practical significance before deciding.

experiment designCausal InferenceGuardrail MetricsGGeakMinds
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2
Behavioral & Leadership4 questions · ~36 min
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3
More topics6 questions · ~54 min
SQL Window Functions for TrendsMedium
Practice

Calculate three-day rolling user activity averages and classify behavior trends with SQL window functions.

null handlingData ManipulationAggregationsGGeakMinds
Investigate Engagement DropHard

Clarify an engagement metric, assess the statistical evidence behind its decline, and recommend a rigorous diagnostic approach.

analyticsData AnalysisDiagnosisGGeakMinds
Metrics for New Product LaunchHard

Design a launch metric system that measures user value, business impact, and product health.

product metricsconsiderationsproduct launchGGeakMinds
Statistical Significance in Hypothesis TestingEasy

Explain what statistical significance means and why it matters when interpreting experimental or analytical results.

Hypothesis TestingData AnalysisStatistical SignificanceGGeakMinds
Balance Conversion and RetentionHard

Framework for deciding when to favor short-term conversion gains versus long-term retention in a product decision.

Feature PrioritizationUser NeedsValue PropositionGGeakMinds
Diagnose Engagement DropHard

Identify the causes of a quarterly engagement decline through metric validation, decomposition, segmentation, and trend analysis.

MetricsDiagnosisuser engagementGGeakMinds

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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 15 questions plus 2 hands-on drills to finish this plan.