Jane Street Quant Interview Questions: How Many Can You Get Right?
<p>Little known outside the community, Jane Street is one of the world’s largest market-maker who trades more than $17 trillion worth of securities in 2020. Yet, the company is also well known for its difficult interview questions. Here I list a few questions I find online, and I feel quite interesting.</p>
<h2>Question 1</h2>
<p><em>A random line segment of length D is chosen on a plane marked with an infinite checkerboard grid (i.e., a unit side length square grid). What length D maximizes the probability that the segment crosses exactly one line on the checkerboard grid, and what is this maximal probability?</em></p>
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