Dataford
Top 39
Prep plan
Updated weekly · Last refresh Aug 30

Ernst & Young Data Scientist Interview Questions

The questions to prepare for a Ernst & Young Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

39questions
~5htotal time
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1
Machine LearningStart here. 12 questions · ~96 min
Model Underperformance DebuggingHard
Recently asked

Tests production troubleshooting skills and your ability to diagnose data, drift, and modeling issues.

production issuesErnst & Young
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2
Statistics & Probability4 questions · ~32 min
P-Values and InterpretationMedium
Recently asked

Tests statistical fundamentals and your ability to interpret results correctly for decision-making.

P-ValuesErnst & Young
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3
A/B Testing & Experimentation3 questions · ~24 min
Key Components of A/B TestsMedium
Recently asked

Tests your understanding of experiment setup, measurement, and validity for healthcare interventions.

experiment designA/B TestingErnst & Young
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4
Behavioral & Leadership12 questions · ~96 min
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5
More topics8 questions · ~64 min
Model Evaluation Metrics Trade-offsMedium
Recently asked

Tests metric selection judgment and your ability to align evaluation to business priorities.

Trade-offsModel EvaluationErnst & Young
Diagnose Product Metric DropsMedium
Recently asked

Tests root-cause analysis using metrics, segmentation, and data validation.

product metricsDiagnosisAnalysisErnst & Young
Importance of Data CleaningMedium
Recently asked

Tests your ability to translate data quality concepts into client value and risk reduction.

data cleaningclient communicationErnst & Young
Design User Engagement MetricMedium
Recently asked

Tests metric design and operationalization for measuring FIRSTNET GLOBAL user engagement.

product metricsdesignuser engagementErnst & Young
Design a Solution for Business ProblemHard
Recently asked

Tests your ability to structure a data science solution end-to-end for client delivery.

analytical thinkingbusiness problemsolution designErnst & Young
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Analyze Customer Purchase Trends with Window FunctionsEasy
Practice
Recently asked
Practice drill

Calculate the monthly spending trends for customers using window functions and joins.

The Home DepotAvisoWorld Wide Technology
SQL Window Functions Moving AverageMedium
Practice
Practice drill

Calculate a three-day moving average of active-client revenue using aggregation and SQL window functions.

Window FunctionsData AnalysissqlAAreteMITREGlassdoor
Rolling 7-Day Incident AverageMedium
Practice
Practice drill

Calculate a calendar-aware 7-day average of Samsara incident counts using CTEs and window functions.

Window FunctionsData AnalysissqlSamsara
The finish line: interview-readyComplete all 39 questions plus 3 hands-on drills to finish this plan.