Honestly, I woke up sick, on a Sunday with no desire but to lay in bed, bored to death. Then I saw there was no birthdays today and my sick mind decided it would be fun to calculate the probability of that happening (since for me it is the first time I don’t see birthdays there), then post about it.I think the general mathematical conclusions from everyone is correct, just that the title is probably tongue-in-cheek, and more correctly it would be "No known birthdays today" from the perspective of what the forum is given, or else to say "Happy birthday to at least someone!", etc.
To know the real probability we would need to first calculate an estimate of how many people did enter their birthday to narrow the N group. That could be done by registering how many birthdays there are each day for a time period, for example 30 days (although the more the better), then average that number to then multiply it by 365 to obtain the estimate for N. Which of course I won’t do lol.
Anyways, it was fun indeed.
Statistics: Posted by RicardoTM — Today, 5:10 am