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OpenStudy (anonymous):
How many people must be gathered together in a room,before you can be certain that there is a 50/50 chance that at least 2 of them have the same birthday?
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OpenStudy (anonymous):
366?
OpenStudy (dan815):
no
OpenStudy (traceur55):
367.
OpenStudy (dan815):
ya
OpenStudy (dan815):
dont forget leap years
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OpenStudy (traceur55):
Precisely.
OpenStudy (dan815):
oh okay then 366!
OpenStudy (dan815):
sry :P
OpenStudy (dan815):
this mean there is atleast 50%
OpenStudy (dan815):
if they want 50% flat in general then
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OpenStudy (dan815):
combinatorics
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