Dating a girl with the same birthday

However, post hoc that is, while in the relationship it's trickier because you would have noticed a lot of other coincidences too: My boyfriend was born the day before me!

Same Astro Sign, Same Birthday as your mate? Whats the Significance

My boyfriend's mother has the same name as my mother! Your question got me thinking, and I realized my girlfriend and I also have a strange birthday coincidence. She was born exactly days before me! And we are also in a successful relationship! So, first of all, the odds of sharing some weird connection with any random person are probably quite high.

Next one should figure out what the chance is of being born in the same year. However, the chances of dating someone from the exact same year are far greater due to a flaw in the educational system where pooling is done by the date of conception. What that exactly boils down to depends on age and month born, but for me it boiled down to more than 0.

Definitely not normal, but then again, coming full circle, you will find something like that for everyone after the fact. The chance that your boyfriend was born the same year as you is actually very high especially given many situations tend to bring people of very similar age together ; it's a very difficult probability to calculate, though, without data.

But P same day should be roughly independent of whether you were born in the same year. So if you had some good estimate of P Same year , you can calculate the overall probability reasonably well. I'd guess that P same year is roughly of the order of 0. According to wikipedia , Thus, a baseline estimate for sharing the same date of birth would be the above statistic divided by two because it captures 2 years for sharing the same year multiplied by the probability of sharing the same birthday:.

As has been noted, both the shared year and shared birthday probabilities could be further refined based on additional information.

When it comes to two people, there are many potential sources of coincidences. Humans are very good at identifying patterns. Within the domain of date of births, you could imagine many possible similarities: We could in some sense describe our sense to which any of these feel surprising or like a major coincidence.


Ever thought of dating someone who was born on the same day as yourself?

But of course, when we speak about coincidences there is a much wide domain of search. For example, we could look at similarities in names, employment history, appearance, etc. The larger you cast the search, the more possible bases there are for finding coincidences. In general, the more you look for them, the more you will see them. This is analogous to the analyst who performs many post-hoc statistical tests without correcting alpha. With enough analyses, the probability of finding a significant pattern gets close to one even when alpha is small. Although the question is about birthdays, the "birthday paradox" isn't really relevant here.

It's about how many random samples you need to take before you expect at least two samples among them to be equal a collision. Your question is mostly about the probability of two samples being equal. If there were 30 people in your relationship then you'd expect two of them to share a birthday but there aren't 30 people, there are only 2. The odds of having a relationship only have quite a small effect.

Most people have a relationship at one time or another.

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I'd guess more than half of adults have one right at this moment. The main consideration is, given this significant person, what is the probability of them sharing your birthday?

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Since you choose a partner based on everything you know about them, which includes their birthday, you can't discount the possibility that the actual incidence is significantly higher or lower. Look at it another way: The chance of a randomly-selected person being the one who delivers your post is tiny, but so what if it is?

It doesn't affect the answer. Assuming universal delivery which I can in my country , someone delivers my post.

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We can completely exclude from consideration all the people who don't deliver my post, they don't affect the odds no matter how many of them there are. What's the chance that you have a partner who shares your birthday? Then adjusted by any factors that mean sharing your birthday is correlated or anti-correlated with dating you. What's the chance that your boyfriend shares your birthday? Well the question pretty much assumes that you have a boyfriend, so strike that part from consideration!

To incorporate the year you need to look at the way the age differences in relationships are distributed. As a rough guess, I'd look at what proportion of relationships have an age difference of less than a year, and multiply my previous number by that. Of course, if you have access to that kind of data you might just be able to look at what proportion of relationships match your criteria, and get the exact frequency without estimating anything: In a society where there's a strong tradition that the man should be somewhat older than the woman in a relationship, you might find that the proportion of age differences below a year is very small, and the proportion couples who share date and year of birth is tiny.

Same Birthday in Astrology? Astro twins?

This could be the case even if the average age difference is just a couple of years. So maybe you are special, by bucking society's rules. But I wouldn't be surprised to be wrong and besides, a lot of my friends met their partners at university, which clearly affects the age difference among the available candidates and that biases what I see to make my guess. Everyone's equal in modern society right? The chances for this to happen However, for you to be in a relationship, you first have to be here. For you to be here, your mom and dad needed to get together - how likely was that then?

Then their parents, grandparents, great grandparents, predecessors, apes, fish, amoebas, rays of sun hitting the first predecessors to plants, back to the big bang going as it did and whatever was before it. If you consider all, then every atom in the universe had to be exactly the way it was for you to be there.

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count. I take that back. I didn't do it right. But hey I have a question about the dates.

Do you say you were born on the 29th of February or do you say you were born on February 29th?

Over here we say February 29th In America, there is only one date where every single American says it, Day of month. Rather than month day. And that is on the 4th of July. In a way it does make more sense. Day is smaller than month, month is smaller than year. But saying, like use my birthday.

Saying 17th of May, is wordy. Where as, May 17th flows off the tongue easier and faster. And there is no arguing that fact. It may sound weird because you aren't used to it, but it does flow much easier. And that is how why on paper we write month day then year. Because we say it that way. Why we say 4th of July like that. Is beyond me, Because we're crazy Americans hahaha.

I think it would be very sweet cause you could celebrate it together which would make it more special. I have a cousin that was born on the same day and year as me but that wouldn't work out so I have yet to find someone with my birthday. I was born on the day that Princess Diana got married so I am happy with that since she is someone I love and respect very much.

I was 6 when she passed. But you were 16, so I can easily see how you feel the way you do. Not sure where you are from, but if you are from Wales that would make perfect sense. And that would be pretty amazing to have that kind of connection with someone who you respected so much! I was born somewhere else but my parents moved to Wales when I was 6 months old so I lived there for 3 years until I came to the states.

My mom loved Princess Diana too and she gave birth to me while watching the wedding on tv. She was an amazing person and I love that I was born on her wedding day. She truly was a princess in my eyes and she had a heart of gold. I didn't read this just looked at the question and yeah that would be pretty cool. Double birthday party heck yeah. My hubby and I are only about 2 weeks apart in birthdays! I met a girl that born a day before me, but I know girl who has the same birthday with me unfortunately she's That sucks I think I know 5 people with the same birthday as me.

Two of them were born the same year as me. I've only met one girl who was born on the same day as me, and she was my teacher who is exactly 30 years older. So, not as nice lol.

Dating someone with the same birthday astrology

Still waiting to meet a girl around my age.. My first and only girlfriend had the exact same birthday as me. Don't do it, no matter how sweet you think it will be. I can never enjoy another birthday again having been burned, and having dumped her.

Dating a girl born on the same day as me, and then marrying her on our birthday. I don't know any girl who was born on the same day as me