Next insurance Data Scientist Interview Questions

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

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Year-Over-Year Retention by Industry

Medium

Tests SQL cohort logic and retention calculations segmented by business-relevant attributes.

Window FunctionsCohort AnalysisAggregations

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Bias Variance and Regularization

Medium

Explain the bias-variance tradeoff mathematically and how L1 and L2 regularization change model complexity and weights.

Bias-Variance TradeoffRegularizationSupervised Learning

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Support-Process Test with Retention Guardrails

Hard

Design an experiment to improve support satisfaction without harming retention, with power, guardrails, and a clear ship rule.

Causal InferenceGuardrail MetricsA/B Testing

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Prioritize Funnel Improvements

Medium

Tests prioritization using data, impact estimation, and funnel understanding for product decisions.

Funnel AnalysisFeature PrioritizationProduct Vision

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Policy A/B Sample Size

Hard

Tests ability to compute A/B sample size and plan statistically valid experiments for product changes.

MDEPower AnalysisSample Size

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Renewal Model Metrics

Medium

Tests metric selection for imbalanced classification and understanding of renewal prediction tradeoffs.

ClassificationAccuracyModel Metrics

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