Jane Street

Interview Question

Quant Intern Interview
Jane Street

What is the expected number of rolls of a six-sided die to observe each face at least once? What is the expected number of rolls to observe each face at least twice?

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!