2011-06-10, 02:34 PM
What? How do you do that calculation. Someone explain it to me. I'm sure it has something to do with combinations or permutations but I don't know how they get to that % via math.
Edit: It's 41.1% actually. But the calculation in general:
You have 20 people in a room what is probability two people share a birthday?
Someone explain.
Edit: It's 41.1% actually. But the calculation in general:
You have 20 people in a room what is probability two people share a birthday?
Someone explain.

