Jane Street

Interview Question

Trader Interview
Jane Street

In a game where a fair coin is tossed repeatedly, player A wins if the sequence HTT appears first, and player B wins if the sequence TTH appears first. Is this game fair?

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!