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New on YouTube: This HRT Quant Interview Question Has a One-Line Answer - Watch now

Get quant-ready in 2026

⚡ Build the skills to land top-paying quant jobs. Offer ends in 25d 09h 50m 18s25 days 9 hours 50 minutes 18 seconds.

61 coins are placed into 15 boxes, each coin independently and uniformly at random. You win if at least one box ends up with more than 4 coins (that is, 5 or more). What is the probability that you win? Give the exact value.