slim to none
suppose you gather in a room with 7 of your closest friends what is the probability that 2 or more people share a birthday?
Nope not mine
Statistically speaking it is around 10%. As for my friends, there are not a lot that have the same birthdays. As for my family, there are quite few at least 3 pairs I can think of right off the bat.
Actually, none of my friends share a birthday. The closest are still several days apart.
Not likely.