In A Group Of 30 People, There Is A 71 Percent Chance At Least Two People Share A Birthday

Lucian@going2paris.net
Aug 16, 2024
1 min read

https://www.youtube.com/watch?v=9G0w61pZPig

August 16, 2024

Sounds crazy, right? This problem is known as the Birthday Problem. It is another example that demonstrates how poor our intuition is at probability.

BTW, if the group size is 23, there is approximately a 50 percent chance that at least two people share a birthday.

I probably would not have done well in a probability class! 🤪

Recent Posts

See All

April 26, 2026 -- Some Thoughts On Resilience

Resilience is built when life doesn’t go your way. I have learned a lot about resilience since August 25, 2016. Up to that time and for sometime after, I didn't understand resilience. I did not comp

April 26, 2026

Who are you when no one's watching? I came across this question when reading an article about relationships. (Again, like my last post, not that any of the article was relevant to me -- smiley face).

April 26, 2026 -- How To Stop Stewing Over The Small Infractions in Life

Another article on my Google News feed. I thought I would share it even though it has absolutely no relevance to moi. (Smiley face). Key points We are genetically predisposed to all things living, j

Comments