Problem
Given a transactions table, write a SQL query to calculate the rolling 3-day average of transaction amounts for each user at Lendbuzz.
Practicing as: Data Scientist interview at LendbuzzHi, I'll play your Lendbuzz 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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