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Updated weekly · Last refresh Sep 22
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Zepto Data Scientist Interview Questions

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

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1
Machine LearningStart here. 4 questions · ~32 min
Bagging vs Boosting ExplainedMedium

Explain how bagging and boosting differ, and identify a representative algorithm for each ensemble method.

Ensemble Methodsmodel trainingSupervised LearningZZepto
GBMs and Missing ValuesMedium

Assesses your ML knowledge of tree-based handling of missing data.

missing valuesZZepto
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2
A/B Testing & Experimentation3 questions · ~24 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 MismatchZZepto
Statistical Significance in Low TrafficHard

Assesses your experimental design choices to achieve reliable inference under low sample sizes.

Statistical SignificanceZZepto
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3
Product Sense4 questions · ~32 min
Aligning Model Metrics to KPIsMedium

Tests your skill in connecting ML evaluation to Zepto business impact and decision-making.

model performanceZZepto
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4
Behavioral & Leadership4 questions · ~32 min
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5
More topics4 questions · ~32 min
First Checks for Metric DropsEasy

Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.

Lagging IndicatorsLeading IndicatorsDiagnosisZZepto
Statistical Significance Meaning and UseMedium

Tests your understanding of hypothesis testing and how you use it to interpret results.

Data AnalysisStatistical SignificanceZZepto
Central Limit Theorem in PracticeMedium

Tests your understanding of probability theory and how it informs experimentation and uncertainty.

Central Limit TheoremstatisticsZZepto
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