eBay Data Scientist Interview Questions
The questions to prepare for a eBay Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Explain how you would diagnose and improve a recommendation system end to end.
eBayUse joins and aggregations to find users with at least two completed orders and summarize their spending.
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Prepare for a broad statistics interview covering distributions, probability, estimation, and hypothesis testing, with no machine learning content.
eBayExplain how to design, power, analyze, and make a launch decision for an unspecified A/B testing case.
eBayImplement and evaluate a binary decision tree classifier, including recursive splitting, stopping rules, and validation.
eBayDefine a metric framework for evaluating a new feature, from immediate adoption signals to long-term retention impact.
eBayFramework for choosing a feature's primary success metric and guardrails before launch.
eBayExplain precision, recall, F1-score, and ROC-AUC for a classification model.
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