Top 16
Prep plan
Updated weekly · Last refresh Aug 30

Total Wine & More Data Scientist Interview Questions

The questions to prepare for a Total Wine & More Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

16questions
~2htotal time
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1
Machine LearningStart here. 3 questions · ~25 min
Supervised vs Unsupervised LearningEasy

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

Unsupervised LearningFeature EngineeringBias-Variance TradeoffTotal Wine & More
Approach Classification ProblemsMedium

Tests your end-to-end ML workflow for classification, including features, models, and evaluation.

Cross-ValidationFeature EngineeringSupervised LearningTotal Wine & More
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2
Statistics & Probability5 questions · ~41 min
Interpreting P Values in TestingEasy

Explain what a p-value means in hypothesis testing and how it relates to statistical significance.

Hypothesis TestingStatistical SignificanceP-ValuesTotal Wine & More
Design Marketing ExperimentHard

Tests experimental design, causal reasoning, and measurement planning for marketing impact.

ExperimentationStatistical SignificanceA/B TestingTotal Wine & More
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3
More topics8 questions · ~66 min
Common Model Evaluation MetricsEasy

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

PrecisionAccuracyRecallTotal Wine & More
Handling Missing DataHard

Tests data quality handling and correct treatment of missingness.

Window FunctionsData WranglingCTEsTotal Wine & More
Identify Sales TrendsMedium

Tests your ability to derive actionable insights from transactional data using appropriate analytics.

KPIsTime SeriesTotal Wine & More
Define Success in RoleEasy

Tests your goals, alignment with business impact, and expectations for a Data Scientist.

Value PropositionProduct VisionTotal Wine & More
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 16 questions plus 3 hands-on drills to finish this plan.