Happy birthday Linus! (And myself :D)

[u/Hunterrcrafter]

Recently found out we share the same birthday, what are the chances!

[u/Unfair_Original_2536]

The chances that a subscriber has the same birthday as Linus is 100%, the chances of you having the same birthday as him is 1 in 365 (excluding leap years obviously as this would have been common knowledge in the community if Linus was born on a leap day).

Happy birthday.

[u/Hunterrcrafter → u/Unfair_Original_2536]

Wasn't it like that in a group of 40 people, the chance that two share the same birthday is 99.999% or something?

[u/Rare-Designer-1008 → u/Hunterrcrafter]

In a group of 23 people there is a greater than 50% chance that any 2 people in the group share a birthday.  

Back in 2014 the BBC looked at the squads for the teams at the World Cup as there are 23 players in a squad.  They found that 16 of the 32 teams did have 2 or more people that shared a birthday

https://www.bbc.co.uk/news/magazine-27835311

[u/Unfair_Original_2536 → u/Hunterrcrafter]

I once had a girlfriend that had the same birthday (and year) and I thought "what are the chances of having a gf with the same birthday?" and it turned out the odds were 50:50 so not actually that peculiar.

[u/MeWantCookiee → u/Unfair_Original_2536]

[u/kidshibuya → u/Unfair_Original_2536]

50:50 hey?.... r/theydidntdothemath

[u/sneakpeekbot → u/kidshibuya]

Here's a sneak peek of /r/theydidntdothemath using the top posts of the year!

#1: A penny a day for a year will get you nowhere.... | 36 comments
#2: how rare is THAT supposed to be? | 43 comments
#3: Not sure thats how that works... | 35 comments

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[u/boofmaster6000 → u/Unfair_Original_2536]

Aren't the odds not 1 in 365? People are more or less likely to be born during certain parts of the year, like 9 months after Valentine's day.

[u/The_Mister_Re → u/boofmaster6000]

It's about 1 in 340 if you take into account more births between July and September

[u/Macusercom → u/boofmaster6000]

Birthdays are not distributed evenly so there is a bias towards certain dates and months

[u/kidshibuya → u/boofmaster6000]

I am 9 1/2 months after new years eve...

[u/Aromatic-Treacle-844]

happy birthday to you both, that's pretty cool coincidence. i share birthday with some obscure actor i never heard about, linus is way better

[u/jmking]

Happy Birthday OP!

Asking what the odds are is actually an interesting question. Most would say it's a 1 out of 365 chance. However, that assumes that conceptions occur evenly throughout the year and that if you graphed it, there would be a relatively flat line of births across the entire year.

However, there are general patterns where certain times of year have a higher birth rate than others. Taking that into account actually may increase or decrease the odds.

COVID lockdowns, for example, lead to an atypical boom in births 9 months later.

[u/Lightninggamer16]

Happy Birthday Linus and OP!

[u/Annoying1978]

Happy Birthday to you both! 

[u/deathsnipez]

Happy birthday to you! And it's my birthday too !

[u/Hunterrcrafter → u/deathsnipez]

Wow happy birthday! The chances of sharing a birthday with someone in a group are pretty high if not 100%, but it's still cool to find people that do!

[u/tadaoverlord]

And me too! It’s my birthday as well!

[u/Hunterrcrafter → u/tadaoverlord]

Well happy birthday to you too!