Jane Street

Interview Question

Quantitative Trader - Intern Interview
Jane Street

What is the expected value of the number of heads when tossing a fair coin five times? Please explain your reasoning.

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!