Here's a fun brain teaser: How large does a random group of people have to be for there to be a 50% chance that at least two of the people will share a birthday? The answer is 23, which surprises many ...

Ever heard of the birthday paradox? It's mind-boggling! Turns out, you only need 23 people in a room for there to be a more than 50% chance that two of them share the same birthday. Sounds crazy, ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Ever wondered how many people it takes to share a birthday? Prepare to be amazed! The "birthday paradox" reveals that just 23 people in the same room can create a greater than 50% chance that two of ...

(via SciShow) There's a rather famous problem in math of probability called the Birthday Paradox. Let's get into how it works, and how creative uses of this hypothetical problem have real-world ...