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Prep plan
Updated weekly · Last refresh Oct 17

Brown University Data Scientist Interview Questions

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

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1
Product SenseStart here. 3 questions · ~26 min
Motivation for Data Engineering WorkEasy

Explain what drives your interest in data engineering, grounded in user needs and the value created by reliable data systems.

Jobs to Be DoneUser NeedsValue PropositionBrown University
Making Findings ActionableMedium

Tests translating analysis into decisions stakeholders can implement.

User NeedsValue PropositionProduct VisionBrown University
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2
Machine Learning5 questions · ~44 min
Prevent Overfitting in ML ModelsEasy

Explain how to reduce overfitting using regularization, validation, and model selection.

Cross-ValidationBias-Variance TradeoffRegularizationBrown University
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffBrown University
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3
Behavioral & Leadership3 questions · ~26 min
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4
More topics5 questions · ~44 min
Evaluate Regression with RMSE and MAEEasy

Explain how to evaluate a regression model with RMSE and MAE, and how to interpret the tradeoff between average and large errors.

RegressionMAERMSEBrown University
Handling Missing DataMedium
Practice

Standardize missing observation fields with fallback values, missingness flags, and ordered output.

Window Functionsmissing valuesdata cleaningBrown University
Handling Unexpected Analysis ResultsMedium

Tests investigation, debugging, and statistical reasoning when results do not match expectations.

ExperimentationHypothesis TestingCausal InferenceBrown University
Data Cleaning and PreprocessingEasy

Tests end-to-end data preparation skills to ensure reliable analysis and models.

Data WranglingETLQualityBrown University
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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 16 questions plus 2 hands-on drills to finish this plan.