Put 23 people in a room and there is a statistical probability of 50% that two of them have the same birthday.
Increase the number of people to 70, and the odds are 99.9% two of them will celebrate their birth on the same date.

Not convinced? See the math here.
Develop your Amazon birthday gift list here.
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Categories: Mathematics, Numbers
The math made my head hurt—–a lot. I’ll have sit with a pencil to get this one! Math…..such fun times.
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