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Updated weekly · Last refresh Oct 17

Larsen & Toubro Data Scientist Interview Questions

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

50questions
~7htotal time
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1
Model EvaluationStart here. 6 questions · ~48 min
Evaluate Imbalanced Model PerformanceMedium

Evaluate a model on an imbalanced dataset and judge whether accuracy is misleading.

F1 ScorePrecisionRecallLarsen & Toubro
Choose AUC-ROC or F1Medium

Compare two classifiers with similar AUC-ROC but different F1 at an operating threshold, and explain when each metric should drive decisions.

F1 ScorePrecisionAUC-ROCLarsen & Toubro
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2
Product Sense8 questions · ~64 min
Recommend Improvements from Customer DataMedium

Use customer data to identify the highest-impact product improvements and decide what to build first.

Feature PrioritizationUser NeedsValue PropositionLarsen & Toubro
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3
Machine Learning8 questions · ~64 min
Experience with ML TechniquesEasy

Describe your hands-on experience applying supervised learning, feature engineering, and model evaluation in real projects.

Cross-ValidationFeature EngineeringSupervised LearningLarsen & Toubro
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4
SQL & Data Manipulation8 questions + 3 drills · ~94 min
5
Pipelines6 questions · ~48 min
Debugging Production Data PipelinesMedium

A structured approach to debugging production data pipelines, with focus on orchestration, data quality, idempotency, and safe backfills.

InfrastructureToolsQualityLarsen & Toubro
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6
Statistics & Probability8 questions · ~64 min
Validate Hypotheses with StatisticsMedium

Tests your statistical testing skills and ability to reason about evidence and uncertainty.

Hypothesis TestingStatistical SignificanceP-ValuesLarsen & Toubro
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7
More topics6 questions · ~48 min
Align Data Science with Business GoalsMedium

Tests your ability to connect modeling work to measurable business outcomes at Larsen & Toubro.

KPILeading IndicatorsDiagnosisLarsen & Toubro
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.