Top 29
Prep plan
Updated weekly · Last refresh Aug 30

The University of Pennsylvania Data Scientist Interview Questions

The questions to prepare for a The University of Pennsylvania Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

29questions
~4htotal time
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1
SQL & Data ManipulationStart here. 7 questions + 2 drills · ~79 min
2
A/B Testing & Experimentation7 questions · ~59 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 MismatchThe University of Pennsylvania
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3
Product Sense3 questions · ~25 min
Designing Campus Portal MetricsMedium

Assesses product thinking and metric design for measuring impact on The University of Pennsylvania’s campus portal.

The University of Pennsylvania
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4
Behavioral & Leadership7 questions · ~59 min
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5
More topics5 questions · ~42 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityThe University of Pennsylvania
Common Model Evaluation MetricsEasy

Explain common machine learning evaluation metrics and when each is useful.

PrecisionAccuracyRecallThe University of Pennsylvania
Investigate User Engagement DeclineMedium

Investigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.

RetentionDiagnosisEngagement MetricsThe University of Pennsylvania
Explain Statistical SignificanceMedium

Assesses communication skills for conveying statistical ideas to non-technical audiences.

CommunicationStatistical SignificanceThe University of Pennsylvania
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The finish line: interview-readyComplete all 29 questions plus 2 hands-on drills to finish this plan.