Most people know "birthday puzzle" (sometimes called "
birthday paradox", I have no idea where "paradox" part came from): how big should be a group of people that there is 50% probability that at least two of them have the same birthday date (answer is 42 23). In my previous group people used to celebrate birthdays (with cake and candles and singing
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n=2280 p=0.493657410104349
n=2281 p=0.494618882351312
n=2282 p=0.495579555664062
n=2283 p=0.496539425608166
n=2284 p=0.497498487775707
n=2285 p=0.498456737785257
n=2286 p=0.499414171281849
n=2287 p=0.500370783936944
n=2288 p=0.501326571448403
n=2289 p=0.502281529540452
n=2290 p=0.503235653963654
То есть моя первая грубая оценка была чуть неточной. Переход через 50% происходит от 2286 к 2287.
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Значительно больше на результат повлияло бы, если бы мы не игнорировали високосные годы.
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