Infer the Factory from Two Black Widgets
Company: SIG (Susquehanna)
Role: Data Scientist
Category: Statistics & Math
Difficulty: easy
Interview Round: Online Assessment
Overview: Use Bayes' rule to identify a factory after observing two black widgets. The solution combines equal priors with factory-specific two-draw likelihoods, derives a posterior probability of 1/10 for Factory B, and explains why the independent-sampling assumption matters.
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