Extia Data Scientist Interview Questions
The questions to prepare for a Extia Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Tests practical engineering choices for data pipelines and justification of tradeoffs.
Tests model explanation depth and rigor of validation methodology.
Tests continuous learning habits and ability to adopt relevant techniques.
Tests experimental design skills including metrics, randomization, and analysis plan.
Tests SQL proficiency and ability to apply window functions to real analytical problems.
Tests causal thinking, instrumentation awareness, and troubleshooting of product analytics.
Tests understanding of statistical significance and correct application in data science decisions.
Tests awareness of experimental threats like bias, leakage, and incorrect randomization.
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Identify each user's consecutive website activity streaks using date arithmetic and SQL window functions.
Intuit Management Consultancy
Chewy
SuperhumanCalculate each study's six-month rolling average of patient enrollment using PostgreSQL window functions.
Demonstrate LEAD, LAG, and RANK to compare employee usage across months and rank usage within each month.
Comcast