This question evaluates a candidate's ability to perform data-driven root-cause diagnosis, select and interpret key metrics across funnels, cohorts, customer and supply layers, and integrate internal and external data sources within the Analytics & Experimentation domain.
You are the data scientist supporting a large consumer marketplace. Leadership reports a sudden decline in topline performance over the last 2 weeks. You need to rapidly diagnose the problem using data.
Hints: Incorporate funnels, cohorts, external factors, and leading indicators. Make minimal assumptions as needed.
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