Stand up prevalence measurement for a new policy area
Measurement & estimationHardProblem. Pinterest is adding a new policy area. Leadership wants a daily prevalence number with a confidence interval, and they want it monitored for regressions. You have a label budget. How would you build this?
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.