What’s the law of large numbers?

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Pretty much the title.

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Anonymous 0 Comments

There are 2 parts to this law.

The first is that if you do something many many times, it will tend to the average. For example if you flip a fair coin 10 times, you might get 70% heads and 30% tails. But if you flip it a million times, you might get 50.001% heads and 49.999% tails. Side note, if you flip a coin enough times and it does not tend towards 50%, you can calculate that the coin is unfair.

The second, known as Law of Truly Large Numbers in Wikipedia, is that if you do something enough times, even very unlikely events become likely. For example, if you flip a coin 10 times, it is very unlikely that you will get heads 10 times in a row. But if you flip a coin a million times, it is very likely that you will get heads 10 times in a row, and even 100 times in a row is still quite likely.

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