I don’t understand probability, at least i do understand it (well no, to be fair i don’t!); i understand the premise of the mathematical notion as understood by people like my husband though :~) But i still say you are wrong :~D
I mean, what exactly is the likelihood of 6 women going on holiday together where 4 of them share their birthdays exactly? (Unless of course you pick your friends by number…) I know its a perfectly work-out-able sum, but frankly, the indefinable strand is that those 4 women know and like one another.
Nevermind that my FIL and MIL had the same birthday; it may be 1-365 but the indefinable extra is that they also happened to fall in love.
Compute this, if you will. Today i get an order from Pboro; now apart from people i know, that doesn’t happen often, maybe 3/4 times in 18 months… now fair enough, we live in a country of a certain number of towns and cities, we live in a city of a definable number of houses, so whatever the probability of it being a Pboro person is, you can add in the number of houses. But isn’t it just a wee bit spooky that this particular customer, who happens to like Hama, and happens to choose my site, lives in the first house i ever conducted a viewing on during my brief career as an estate agent?