Author: Sune Fischer
Date: 08:29:36 12/11/02
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On December 11, 2002 at 10:05:15, Bruce Cleaver wrote: >After reading about the subject of hash collisions (what are the > >chances of a hash collision during a game?) I thought about it and > >suddenly realized it was similar to the so-called 'Birthday problem' > >(how many people must be gathered together to have a 50% chance that at > >least two people share the same birthday?). The Birthday problem is > >interesting because people assume the answer is 183 (i.e. 365/2) to get > >a 50% chance, but in fact the answer is only 23! With 38 people it > >climbs to about 90%. 100% chance requires 366 people. Rather > >counter-intuitive. Yep, it is the birthday problem. If you search the archieves you will find discussions about this :) -S.
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