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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Return the second-highest distinct non-null salary from a single employee table.
PayU
Pocket FmFind the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.
JPMorganChase
Silicon Valley Bank
Banco SantanderWrite a PostgreSQL join that preserves all orders and clearly classifies NULL and unmatched customer keys.
Pattern
Swiggy
Quantiphi