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Updated weekly · Last refresh Aug 30

Expedia Group Data Scientist Interview Questions

The questions to prepare for a Expedia Group Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
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1
Machine LearningStart here. 12 questions · ~96 min
2
A/B Testing & Experimentation4 questions · ~32 min
Primary vs Guardrail MetricsEasy

Explain how a primary metric differs from a guardrail metric and how both are used in A/B test decisions.

ExperimentationGuardrail MetricsA/B TestingExpedia Group
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3
Metrics3 questions · ~24 min
Diagnose Conversion Drop Post LaunchMedium

Diagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.

Funnel AnalysisConversion RateDiagnosisExpedia Group
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4
Product Sense3 questions · ~24 min
Improving an Expedia App FeatureMedium

Tests product sense and data-driven prioritization for Expedia Group product improvements.

Feature PrioritizationUser NeedsPain PointsExpedia Group
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5
SQL & Data Manipulation3 questions + 3 drills · ~54 min
6
Statistics & Probability4 questions · ~32 min
Interpreting Statistical SignificanceMedium

Tests your statistical testing choices and your ability to interpret p-values responsibly.

Hypothesis TestingStatistical SignificanceP-ValuesExpedia Group
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7
More topics21 questions · ~168 min
Design a Travel Recommendation PipelineHard

Design an end-to-end travel recommendation system with retrieval, ranking, feature pipelines, and online feedback loops.

Feature StoreRetrievalRecommendation SystemsExpedia Group
Choosing Classification Evaluation MetricsEasy

Explain which classification metrics to use and how metric choice depends on the business objective and error tradeoffs.

PrecisionAccuracyRecallExpedia Group
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