Problem
How would you use SQL window functions to calculate a 7-day rolling average of a key metric and compare it to the prior week?
Practicing as: Data Scientist interview at HarnhamHi, I'll play your Harnham interviewer for the Data Scientist role. Candidates describe these interviews as mixed and moderately difficult, so expect me to be professional and fair. Take your time with the question above and answer like we're in the room.
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