Unverified50% confidenceSolutionExact time
When randomized experiments are not feasible, causal inference methods become critical, including Difference-in-Differences (DID), Regression Discontinuity Design (RDD), Instrumental Variables (IV), and Propensity Score Matching (PSM).
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50%
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Long-term
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8/15/2026
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数据科学首轮面试：30分钟里到底考什么？
redditr/datascience8/13/2026
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