Coach note
Interviewers ask this kind of question to surface how you think, not what you remember. The strongest answers are specific, calmly told, and end on what changed.
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Ethics & accountability · Owning failure
An A/B test you designed and championed drove a product decision that shipped to everyone — and you later find a flaw in the experiment setup that means the result was never real. The feature's already live and being celebrated. What do you do?
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