Alex leans in. "Because physics taught me to model uncertainty with differential equations – but finance taught me that the real skill is knowing when your model is wrong. The 150 questions get you in the door. Not panicking when the model breaks gets you the job."
Probability is the "bread and butter" of quant trading. Expect questions that test your ability to calculate odds on the fly. 150 Most Frequently Asked Questions On Quant Interviews
What is Brownian motion (Wiener process)? Alex leans in
Why do you want to work in quantitative finance? how long does it take together?
If Pipe A fills a tank in 3 hours and Pipe B in 5, how long does it take together?