Top 22
Prep plan
Updated weekly · Last refresh Aug 30

PROS Data Scientist Interview Questions

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

22questions
~3htotal time
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1
Machine LearningStart here. 4 questions · ~34 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 TradeoffPROS
Feature Selection TechniquesMedium

Tests feature selection strategy and understanding of bias-variance tradeoffs.

Cross-ValidationFeature EngineeringRegularizationPROS
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2
Statistics & Probability3 questions · ~26 min
Checking Statistical SignificanceMedium

Tests your ability to validate statistical claims and verify assumptions before drawing conclusions.

Confidence IntervalsStatistical SignificanceP-ValuesPROS
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3
Behavioral & Leadership7 questions · ~60 min
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4
More topics8 questions · ~68 min
Analyze Customer Purchase Trends with Window FunctionsEasy
Practice

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

PROS
Evaluate Regression with RMSE and MAEEasy

Explain how to evaluate a regression model with RMSE and MAE, and how to interpret the tradeoff between average and large errors.

RegressionMAERMSEPROS
Turn Feedback Into New FeaturesMedium

Approach for turning user feedback into a well-scoped feature, with clear prioritization, MVP definition, and success metrics.

User ResearchFeature PrioritizationUser NeedsPROS
Pricing Page Experiment DesignHard

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 TestingPROS
Diagnose KPI Drop After ReleaseMedium

Diagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.

KPILeading IndicatorsDiagnosisPROS
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The finish line: interview-readyComplete all 22 questions plus 2 hands-on drills to finish this plan.