Knowledge Science | Statistics
A have a look at the counterintuitive arithmetic of shared birthdays
Water cooler small discuss is a particular sort of small discuss, usually noticed in workplace areas round a water cooler. There, staff ceaselessly share every kind of company gossip, myths, and legends, inaccurate scientific opinions, indiscreet private anecdotes, or outright lies. Something goes. So, in my Water Cooler Small Speak posts, I talk about unusual and often scientifically invalid opinions I’ve overheard within the workplace which have actually left me speechless.
Right here’s the water cooler opinion of right this moment’s put up:
I work in an workplace ground with 60+ folks, and final week two of them had their birthdays on the identical day. Realizing they shared their birthday, they’d a dialog someplace alongside the next strains:
– I can not imagine we’ve our birthdays on the identical day!
– Sure, what are the possibilities?
..and everybody commented on how unusual it was. A loopy, karmic coincidence…
🌌🥳
However for actual, what are the possibilities? With a fast estimation, one might imagine that the probabilities of such an occasion ought to be very low…
