All Questions
Tagged with calendar-computations birthday
2
questions
1
vote
2
answers
150
views
What is the probability of someone being born both on a Good Friday that is also Friday the 13th
I was born on April the 13th 1990. The day was also Good Friday. I'm wanting to know what the probability/chances of being born on a Good Friday that is also a Black Friday is/are to have an ...
32
votes
3
answers
30k
views
birthday problem - expected number of collisions
There are many descriptions of the "birthday problem" on this site — the problem of finding the probability that in a group of $n$ people there will be any (= at least 2) sharing a birthday.
I am ...