Thoucentric Data Scientist Interview Questions
The questions to prepare for a Thoucentric Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Calculate monthly user totals, running totals, and time-based rankings with PostgreSQL window functions.
Explain when to use JOINs versus window functions in Zomato analysis, with examples of each.
Optimize a slow PostgreSQL query on a large dataset by choosing better filters, joins, and indexes.
CitiTThoucentricPPitney BowesExplain how accuracy, precision, recall, and F1 score differ and why accuracy can mislead on imbalanced data.
Assess linear regression assumptions using residual diagnostics, statistical tests, and corrective modeling choices.
Identify the causes of a quarterly engagement decline through metric validation, decomposition, segmentation, and trend analysis.
Explain what a p-value means in hypothesis testing and how it relates to statistical significance.
Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.
Explain how to select metrics, validate predictions, and analyze errors when evaluating a machine learning model.
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