Citadel · Probability

Citadel Probability Interview Questions

Probability is the backbone of every quant interview: conditional probability, Bayes’ theorem, expected value and classic puzzles like Monty Hall and the two-children problem. Citadel and Citadel Securities run some of the most competitive quant interviews in the industry, spanning probability, statistics and market-making intuition. Below are 5 probability problems of the kind asked at Citadel.

All Citadel questions, every probability question, or the whole bank.