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Updated weekly · Last refresh Oct 28
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Mahindra and Mahindra Data Scientist Interview Questions

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

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1
A/B Testing & ExperimentationStart here. 3 questions · ~29 min
Assessing Statistical SignificanceHard

Explain how to select, execute, and interpret statistical significance tests for A/B test results.

experiment designGuardrail MetricsData AnalysisMMahindra and Mahindra
Compute A/B Test Sample SizeHard

Determine the sample size needed to detect a meaningful A/B test effect at a chosen significance level and power.

experiment designMDEStatistical SignificanceMMahindra and Mahindra
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 MismatchMMahindra and Mahindra
2
More topics5 questions · ~48 min
Window Functions for TrendsMedium
Practice

Calculate account-level running totals and three-row moving averages with PostgreSQL window functions.

Window FunctionsJoinsData ManipulationMMahindra and Mahindra
Balance Short-Term and Long-Term ValueHard

Explain how to optimize near-term product outcomes without sacrificing long-term user trust, retention, and value.

product metricsTrade-offsFeature PrioritizationMMahindra and Mahindra
Diagnosing a Sudden Metric DropHard

Diagnose a sudden 20% KPI decline by validating measurement, decomposing drivers, and separating real behavior changes from data issues.

analyticsKPIdiagnostic processMMahindra and Mahindra
Define Metrics for New FeaturesMedium

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

MetricsFeature Prioritizationuser valueMMahindra and Mahindra
Explaining a Technical Concept ClearlyEasy

Tests communication, ownership, and stakeholder management when translating technical complexity into actionable business understanding.

Problem SolvingData Structurestechnical fundamentalsMMahindra and Mahindra

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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
SQL Window Functions ExperienceMedium
Practice
Practice drill

Use SQL window functions to rank regions by average 2024 yield within each country.

Window FunctionsJoinsData ManipulationErnst & YoungKBRMaximus Tech
Consecutive Activity Days QueryMedium
Practice
Practice drill

Identify each user's consecutive website activity streaks using date arithmetic and SQL window functions.

Window FunctionsDate FunctionsData ManipulationIntuit Management ConsultancyChewySuperhuman
The finish line: interview-readyComplete all 8 questions plus 2 hands-on drills to finish this plan.