EDF Data Scientist Interview Questions
The questions to prepare for a EDF Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Explain common online experimentation pitfalls and how to design, analyze, and decide in ways that avoid false wins.
EDFExplain how to test whether an observed experiment lift is real using hypothesis testing, p-values, and confidence intervals.
EDFExplain practical strategies for handling missing data and how to validate that the chosen approach improves model performance.
EDFTests SQL window function mastery for time-based aggregations and customer-level metrics.
EDFCalculate each EDF smart meter's rolling 7-day average energy consumption from daily readings.
EDFIdentify customers experiencing more than three grid outages in one billing month using joins, date matching, and aggregation.
EDFRank the top 3 completed rides per vehicle per day using joins, a CTE, and ROW_NUMBER.
Waymo
CruiseBuild a sentiment classifier for customer feedback using modern text preprocessing and transformer fine-tuning.
EDFOutline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
EDFTests ability to design reliable end-to-end ML workflows from data to deployment.
EDFAssesses selection of appropriate metrics and validation approach for ML model performance.
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