What’s the birthday paradox

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So the birthday paradox is where if you’re in a room with 23 other people there’s a 50% chance of at least two people having the same birthday. Alternatively, In a room of 75 there’s a 99.9% chance of at least two people matching.

Why is this?

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26 Answers

Anonymous 0 Comments

This just isn’t possible, I know people like to use fancy math to make it sound good, but it just doesn’t work like that. There’s a website that generates random numbers. I set it to pick 23 numbers at random between 1 and 365. I have yet to have two matching numbers in any example. The math just doesn’t work out.

Numbergenerator.org set to allow duplicates, and sort. Been close, but so far no matches after about a dozen rolls.

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