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Difficulty: Hard
Category: Probability & Statistics
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: probability, expected-value, combinatorics
You are analyzing the performance of a distributed hashing algorithm. The algorithm throws $n$ balls into $n$ bins randomly. Each ball is thrown independently. What is the expected number of bins that will contain exactly one ball?
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