📕 FREE Guide2025 Quant Firm Tier List

Jane Street Interview Question

Jane StreetAssistant Trader Interview

you have five coins. One is double-headed. Pick one coin at random without looking and throw it 5 times. Suppose the outcome are five heads, what is the probability that the coin picked is the double-headed one?

Unlock the Full Solution

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

Want to ace more quant interviews?

Get access to our comprehensive interview preparation course with hundreds of real interview questions, detailed solutions, and personalized mentorship from quants at top firms.

Start Your Prep Today