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Quant Research Interview Questions - Citadel

Quantitative research interviews at top-tier hedge funds and prop trading firms like Citadel, Jane Street, and WorldQuant are renowned for their rigor, mathematical depth, and emphasis on problem-solving skills. These interviews test not only your understanding of advanced probability, statistics, and finance, but also your ability to think clearly and communicate your reasoning. In this guide, we will explore some of the most frequently asked quant research interview questions, provide detailed solutions, and help you build the intuition needed to succeed in such highly competitive environments.

This question tests your understanding of distributions, particularly the log-normal distribution, and your ability to compute expectations.