Problem
How would you use SQL window functions to calculate rolling 7-day engagement and retention metrics by member cohort for Oscar Insurance?
Practicing as: Data Scientist interview at Oscar InsuranceHi, I'll play your Oscar Insurance interviewer for the Data Scientist role. Candidates describe these interviews as often stressful and moderately difficult, so expect me to be direct and to the point. Take your time with the question above and answer like we're in the room.
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