2013-05-03, 05:33 PM
TrueBlitz Wrote:How very strange you have the same birthday as me.
Happy b-day!
Not strange at all. There are only 365 unique days in a year after all. A group of 20 people having all unique birthdays is only about 60% chance likely P = (365!/(365-x)!)/(365^x). SP seems to have about 50 active members, so there is a 97% chance that at least two persons share a birthday.

