Problem
Given a dataset of user transactions, write a Python script using Pandas to find the rolling average of purchases over a seven-day window.
Practicing as: Data Analyst interview at KnownHi, I'll play your Known interviewer for the Data Analyst 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.
You are practicing as a guest. Sign up free to get your answer graded with AI feedback. Your draft stays right here.
