Catchalotto

[Frank]

(11-28-2009 09:37 PM)ido Wrote:  Hi Frank&Catchalotto,

..."what is the minumum number of people in a room before there is a 50% chance of 2 people sharing the same birthday ?...."

surptisingly my automatic mental replay was (only)two twins ever give 100%!!!
The funny thing is that after some time every player by acumulating
his experience starts mentaly seriosly to consider the twins problem in it's two main aspects - everithing may happen &ever is possible something very probable not to happen.

Well we were not interested in the YEAR of birth , just the day and month, so you don't need twins to have a birthday match.

Incidentally, to get back to the BUlgarian Lottery repeat, I just read that its actually a 6/42 lottery which means that the chances of an ordinary repeat (not consecutive) is better than 50% after only 2697 draws in a 6/42 lotto. I cant get hold of all the past Bulgarian results for the tantaliser as the site is in Bulgarian and Google can't find anything. I'm pretty sure that if the lottery has been running as long as 50 years at twice a week, then there are certain be other instances of results repeating non consecutively, if its 6/42.