Question

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?

Answer 1

366?

Answer 2

no

Answer 3

367.

Answer 4

ya

Answer 5

dont forget leap years

Answer 6

Precisely.

Answer 7

oh okay then 366!

Answer 8

sry :P

Answer 9

this mean there is atleast 50%

Answer 10

if they want 50% flat in general then

Answer 11

combinatorics