Top 19
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Marley Spoon Data Scientist Interview Questions

The questions to prepare for a Marley Spoon Data Scientist interview. Questions from real interview reports rank first. Updated daily.

19questions
~3htotal time
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1
A/B Testing & ExperimentationStart here. 3 questions · ~25 min
Guardrails for Checkout ExperimentMedium

Design a checkout A/B test that improves conversion without degrading latency, error rate, or overall system performance.

ExperimentationGuardrail MetricsA/B TestingMMarley Spoon
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 MismatchMMarley Spoon
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2
Machine Learning3 questions · ~25 min
Preprocessing Data With Missing ValuesMedium

Explain how to preprocess missing data for a supervised learning task without introducing leakage or degrading model quality.

Cross-ValidationFeature EngineeringSupervised LearningMMarley Spoon
Describe an ML Project You BuiltMedium

Describe a machine learning project, from problem framing and feature work to model training and evaluation.

Cross-ValidationFeature EngineeringSupervised LearningMMarley Spoon
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3
Product Sense5 questions · ~41 min
Define Metrics for New FeaturesMedium

Define a success metric for a new feature that captures real user value, not just raw usage.

MetricsFeature Prioritizationuser valueMMarley Spoon
Churn Reduction Campaign SuccessMedium

Evaluates how you translate business goals into measurable campaign outcomes.

Success CriteriaMMarley Spoon
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4
Statistics & Probability3 questions · ~25 min
Statistical Significance in Hypothesis TestingEasy

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

Hypothesis TestingData AnalysisStatistical SignificanceMMarley Spoon
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5
Behavioral & Leadership4 questions · ~33 min
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6
More topics1 question · ~8 min
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