Top 40
Prep plan
Updated weekly · Last refresh Nov 11

Walmart Labs Data Scientist Interview Questions

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

40questions
~6htotal time
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1
SQL & Data ManipulationStart here. 6 questions + 1 drill · ~62 min
2
A/B Testing & Experimentation9 questions · ~77 min
Lift Conversion but Hurt RetentionHard
Recently asked

An experiment increases conversion but lowers retention; assess whether the trade-off is real and whether the change should ship.

ExperimentationCausal InferenceGuardrail MetricsWalmart Labs
Pricing Page Experiment DesignHard
Recently asked

Design an end-to-end A/B test for a pricing page, including MDE, guardrails, analysis plan, and a ship decision.

Guardrail MetricsSample SizeA/B TestingWalmart Labs
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3
Product Sense8 questions · ~69 min
Define Launch Success MetricsMedium
Recently asked

Approach for choosing launch success metrics, including a north star, leading indicators, and clear success criteria.

Product-Market FitUser NeedsKPIWalmart Labs
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4
Metrics4 questions · ~34 min
Analyze Campaign Metrics That MatterEasy
Recently asked

Explain how you evaluated a marketing campaign using funnel, efficiency, and business outcome metrics.

KPIsLeading IndicatorsDiagnosisWalmart Labs
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5
Machine Learning4 questions · ~34 min
Logistic Regression Bias and CollinearityHard
Recently asked

Evaluates advanced understanding of logistic regression regularization and feature correlation handling.

Walmart Labs
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6
Behavioral & Leadership8 questions · ~69 min
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7
More topics1 question · ~9 min
Assess Statistical SignificanceMedium
Recently asked

Evaluates correct use of hypothesis testing and interpretation of results.

Data AnalysisStatistical SignificanceWalmart Labs
The finish line: interview-readyComplete all 40 questions plus 1 hands-on drill to finish this plan.