Jane Street

Interview Question

Quantitative Researcher Interview
Jane Street

In a game, I toss a coin 5 times and you toss it 4 times. If I get more heads than you, I win; otherwise, you win. What is the probability that you will win?

Unlock the Full Solution

Enter your email to get instant access to the complete solution, explanation, and similar practice problems.

Insights on 100+ quant firms, understand where to apply, and maximize your chances.

Get the official 2025 QB Quant Firm Tier List

Check your email inbox — you should get the interview in 1-2 minutes!