PayU Data Scientist Interview Questions
The questions to prepare for a PayU Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Explain how to train and evaluate models on highly imbalanced fraud data without relying on misleading accuracy.
PayUTests understanding of logistic regression and its probabilistic interpretation.
PayUEvaluates conditional probability reasoning.
PayUAssesses ability to build ROI estimates from data and assumptions.
PayUOutline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
PayUIdentify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
PayUTests system design skills for real-time anomaly detection on transaction streams.
PayUTests coding ability and string manipulation fundamentals in Python.
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Find the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.
JPMorganChase
Silicon Valley Bank
NaviUse a self-join to match employees to managers in the same table and classify same- vs cross-department reporting lines.
PayUFind the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
eClinicalWorksNNeenOpal Canada
Informatica