My apologies for creating a second topic within a day, but I need to share a wild coincidence that just happened to me, and I am wondering:
- What is the probability of something like this happening?
- Have you experienced amazing coincidences like this on Postcrossing?
Last month, I convinced my best friend to join Postcrossing. Since she is new, she has only sent a few cards so far.
Today, I drew an address in another country (the owner and nationality of whom I will not specify, so as not to spoil the surprise for the recipient). As I was looking through this Postcrosser’s recently registered postcards, I noticed one card that looked familiar. The username underneath it looked familiar, too.
Sure enough, my aforementioned friend had sent the card, which the Postcrosser had favorited. In fact, that was the first-ever address that my friend had drawn!
There are over 800,000 members on this site; I don’t know how many of them are eligible to be selected at a given time, but what is the probability that my best friend and I drew the same randomized address in such close proximity to each other?
Needless to say, my friend and I are absolutely amazed. Mathematicians, please chime in!