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Updated weekly · Last refresh Aug 30

UC San Francisco Data Scientist Interview Questions

The questions to prepare for a UC San Francisco Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

33questions
~4htotal time
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1
Product SenseStart here. 3 questions · ~24 min
2
Statistics & Probability3 questions · ~24 min
Statistical Significance in Hypothesis TestingEasy

Explain what statistical significance means and why it matters when interpreting experimental or analytical results.

Hypothesis TestingData AnalysisStatistical SignificanceUC San Francisco
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3
A/B Testing & Experimentation6 questions · ~49 min
Choosing Randomization Unit for UI TestMedium

Choose the right randomization unit for a customer-facing experiment and explain how that choice affects metrics, power, and validity.

ExperimentationGuardrail MetricsA/B TestingUC San Francisco
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4
Machine Learning3 questions · ~24 min
Prevent Overfitting in ML ModelsEasy

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

Cross-ValidationBias-Variance TradeoffRegularizationUC San Francisco
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5
Metrics3 questions · ~24 min
Diagnose KPI Drop After ReleaseMedium

Diagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.

KPILeading IndicatorsDiagnosisUC San Francisco
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6
SQL & Data Manipulation3 questions + 3 drills · ~54 min
7
More topics12 questions · ~97 min
Choosing Model Evaluation TechniquesEasy

Explain how you evaluate models using the right metrics, validation strategy, and error analysis for the problem.

PrecisionAccuracyRecallUC San Francisco
Optimize Code EfficiencyMedium

Tests your performance engineering skills for data pipelines and scalable analytics.

InfrastructureData ModelingQualityUC San Francisco
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