Tackle a challenging mathematical puzzle that was once a banned Google interview question in this 12-minute video from MindYourDecisions. Learn how to solve a complex probability problem about gender selection preferences, with a clear breakdown of common mistakes, estimation techniques, intuitive approaches, and a formal mathematical proof. The video is structured in segments covering the problem statement, typical errors, approximation methods, conceptual understanding, and rigorous solution. Explore this fascinating problem that appeared on Business Insider's list of banned Google interview questions and was discussed on Math Overflow, with timestamps provided to navigate directly to specific sections of the explanation.