Quote:
Originally Posted by Carth
Right, so as I'm reading all the highly intelligent replies (which don't actually say anything apart from 'we're right you're wrong'), I can see that 2 of 30 in the same room sharing a birthday is a definite statistical probability, whereas 2 from 40 sharing the same christian and (uncommon) surname is simply too absurd to be considered a statistic.
Truth be told, both are simply coincidences, bugger all to do with statistics.
|
Hugh showed you how it statistically works. It's because you're not looking if one specific birthday is shared by another person, it's if
any person shares a birthday with
anyone else. So when you reach 23 people you have 253 possible combinations of dates (23 * 22 / 2) in a year.
I don't understand why you're going on about names. It's not the same principle.