Question

(probability)

How many people do you need to gather to be sure that at least two of them have birthdays in the same month?

Answer 1

Because there are 12 months, 12 of the people could have birthdays in all 12 months. But when you add 1 more person, you know they must have a birthday in a month that somebody else has

Answer 2

So 13 people?

Answer 3

I can't give the answer

Answer 4

K, but thanks,