RE: What's the probability that 3 out of 23 people will share the same birthday?
January 21, 2022 at 5:09 am
It's one of those paradoxes that isn't. Here's the roughest way to look at it.
If you have a group of 23 people, the number of possible pairs is 253: 23x22/2. The odds of shared birthdays is found by dividing the possible pairs by the number of days in a year. 253/365 is just over 69% (the actual percentage is much closer to - but still above - 50%).
Boru
If you have a group of 23 people, the number of possible pairs is 253: 23x22/2. The odds of shared birthdays is found by dividing the possible pairs by the number of days in a year. 253/365 is just over 69% (the actual percentage is much closer to - but still above - 50%).
Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
