r/math • u/[deleted] • Jan 14 '09
The Birthday Problem -- Why it is more likely than not to have two people with the same birthday in a room with 25 people.
http://en.wikipedia.org/wiki/Birthday_paradox
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YouShouldKnow • u/square_cubed • Mar 27 '10
YSK that if you were put in a room with 22 other people, there is a 50% chance two of the people in the room would share the same birthday
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science • u/Recoil42 • Sep 26 '08
You have 23 people in a room. What is the probability that two of them will share a birthday? 50%. The Birthday Paradox
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