The Birthday Paradox in 4 minutes.

Описание к видео The Birthday Paradox in 4 minutes.

How is it possible that 23 people have a 50% chance of a shared birthday?

The answer lies in many to many relationships and exponential numbers.

Consider the following:
1) If you double a grain of rice for every square on a chessboard, how many grains of rice would have at the end?
2) If you continually fold a piece of paper, how many folds until the thickness can reach the moon?

The answers, 1.4 trillion metric tons and 42 folds. Our brains are terrible at understanding exponential numbers like this.

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