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Updated weekly · Last refresh Sep 18
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Shaadi Data Scientist Interview Questions

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

21questions
~3htotal time
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1
Machine LearningStart here. 4 questions · ~36 min
Bias Variance and RegularizationMedium

Explain the bias-variance tradeoff mathematically and how L1 and L2 regularization change model complexity and weights.

Bias-Variance TradeoffRegularizationSupervised LearningSShaadi
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2
Statistics & Probability3 questions · ~27 min
Explaining P Values ClearlyEasy

Explain what a p-value means, how it relates to statistical significance, and how to describe it clearly to non-technical stakeholders.

CommunicationStatistical SignificanceP-ValuesSShaadi
Determining A/B Test SignificanceMedium

Explain how to evaluate whether an A/B test result is statistically significant and how to interpret the result.

marketing experimentStatistical SignificanceAnalysisSShaadi
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3
Product Sense4 questions · ~36 min
Define Metrics for New FeaturesMedium

Define a success metric for a new feature that captures real user value, not just raw usage.

MetricsFeature Prioritizationuser valueSShaadi
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4
A/B Testing & Experimentation3 questions · ~27 min
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchSShaadi
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5
Behavioral & Leadership3 questions · ~27 min
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6
More topics4 questions · ~36 min
Top Active Users With Window FunctionsMedium
Practice

Rank the three most active Cengage users per month using aggregation and ROW_NUMBER().

Window FunctionsDate FunctionsRankingSShaadi
Diagnose Conversion Drop Post LaunchMedium

Diagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.

Funnel AnalysisConversion RateDiagnosisSShaadi
Canary vs Blue-Green DeploymentsMedium

Tests tradeoffs between deployment strategies and risk management in production systems.

deployment strategiesSShaadi
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
Identify Funnel Bottlenecks in OnboardingHard
Practice
Practice drill

Use joins, CTEs, and aggregations to find the weakest step in an onboarding funnel and estimate lost conversions.

Funnel AnalysissqlDiagnosisAtlassianRevolut
SQL Top Pages by Conversion DropMedium
Practice
Practice drill

Use weekly conversion rates and LAG to find the three pages with the largest week-over-week declines.

Window FunctionsLag/LeadDate FunctionsRed Ventures
The finish line: interview-readyComplete all 21 questions plus 2 hands-on drills to finish this plan.