The refund threshold is a free experiment
Causal inferenceHardProblem. Whatnot auto-refunds disputes below $50 and investigates above. Nobody designed this as an experiment. Can you use it to measure what instant refunds are worth?
Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.