Find the least positive integer 'N' so that, in a room containing 'N' people, the odds that two of the people have the same birthday (not the year, just the day) are more than 50%.
[Note: Forget about Leap Year. Assume that a year has 365 days and that people are born randomly throughout the year].
(In reply to
by Bart freeman)
Of course, the more people there are in the room the more likely it is to have a match. While 23 (not 22) is the least that will give a larger probability of a match than not, 40 gives even better odds of finding a match. There's no contradiction there.

Posted by Charlie
on 20030929 20:17:37 