# Dating a girl with the same birthday

Well building on the Birthday Paradox, which shows that if you have 23 people in a room its better than 50/50 that two will have the same birthday, and for most people at school where the set is restricted to people around your age this normally meant two people with the same birth date (day, month, year), on one occasion at school I was in a class with two people with a birthday of August 31 so the question of ‘youngest’ in the year was a matter of a few hours.Taking the maths behind the Birthday Paradox and adding in a few more variables, for instance assuming that 100 years will cover everyone and that ages are uniformly spread (this is clearly a false assumption but one which makes it less rather than more likely to find a match) we take the old maths of the Birthday Paradox So now the probability that anyone in a group has exactly the same birth date as another p(n) can be calculated.

This means that if there are only 89 records then you have ~90% certainty that any match is the result of it being the same individual, at 468 records your certainty is down to 5%. Closer at times to each other then our blood families. It has been a real honor to have the connection of someone so similar.Statisticians note that this ignores such factors as leap years and the fact that births are not evenly spaced throughout the year.Gardner joked that if he and Hillary Gardner have more children, they may have to try for December.After all, the husband and wife were born the same day.And so was their son, 27 years later this past December. We've known each other 30 years, and I'll bet that's the total times we've addressed each other by our given names. This is kind of strange for me because I'm a bastard.

Of course, she was Jessica and my sister's almost always Jess or Jessy.

Lets take the 50/50 point as where we decide that this really isn’t the sort of metric we should rely on and try and understand just how big the 50/50 group is.

This remember covers of 36,525 days, a rudimentary maths approach would say that 23/365 (6.3%) would indicate around 2300 people would be required, probability however isn’t rudimentary maths and instead the answer is that just 226 people are required until a 50/50 match is probable.

The odds of that happening are about one in 133,000, statisticians say. They learned about their shared birthday before they started dating, while just part of a group of friends who hung out together.

And that’s a lot less likely than getting hit by lightning sometime in your lifetime, which some put at roughly one in 12,000. So the couple from Baldwyn, Mississippi, got in some exercise to try to hurry the baby up a bit. 17, Gardner said, “we went walking” around the parking lot at First Baptist Church of Baldwyn, where Gardner is outreach pastor. “I saw it on a Facebook page first and asked about it,” Gardner said. I had to confirm it with her.” The chance of meeting someone born the same day as you is one in 365, explained Tumulesh Solanky, chair of the math department at the University of New Orleans.

So the first person I think of when I think of that first name is my ex. My dad has one of the most common names in America with several variants, so it wouldn't be a big deal at all.