Birthday Odds
November 19th, 2020 at 4:24:46 PM
permalink
I discovered something interesting and I am curious regarding "What are The Odds?"
My Father's Birthday is Nov 12
My Birthday is Nov 13
I calculate the odds of this @ 354:1 (I ignored leap year)
My boss's birthday is Nov 12
My boss's son's birthday is Nov 13
See where I a going with this.
What are the odds of two father/son pairs sharing the same birthday combination?
I calculate the odds at 48,627,124:1
How close did I get? What is the math?
My Father's Birthday is Nov 12
My Birthday is Nov 13
I calculate the odds of this @ 354:1 (I ignored leap year)
My boss's birthday is Nov 12
My boss's son's birthday is Nov 13
See where I a going with this.
What are the odds of two father/son pairs sharing the same birthday combination?
I calculate the odds at 48,627,124:1
How close did I get? What is the math?
November 19th, 2020 at 6:27:16 PM
permalink
Quote: motodds
What are the odds of two father/son pairs sharing the same birthday combination?
I calculate the odds at 48,627,124:1
How close did I get? What is the math?
First of all, I assume you meant 364:1.
If the father's birthday has to be the day before the son's in both cases, the probability is 1/365 (that the son's birthday is the day after the father's) x 1/365 (that the second father's birthday is the same as the first) x 1/365 (that the second son's birthday is the same as the first) = 1 / 48,627,125, or, as you put it, odds of 48,627,124 : 1 against.
If the son's birthday can be first, then it's 2/365 x 1/365 x 1/365 = 2 / 48,627,125, or odds of 24,313,561.5 : 1 against.
November 19th, 2020 at 7:48:01 PM
permalink
I was also born the day after my father.
Man Babes #AxelFabulous
November 19th, 2020 at 7:50:58 PM
permalink
Quote: motodds
What are the odds of two father/son pairs sharing the same birthday combination?
With 10 billion people on the planet I would guess that it is almost guaranteed.
At my age, a "Life In Prison" sentence is not much of a deterrent.
November 19th, 2020 at 7:51:10 PM
permalink
Both of my brothers were born on the same day, four years apart. My wife and son are five days apart.
"For with much wisdom comes much sorrow." -- Ecclesiastes 1:18 (NIV)
November 20th, 2020 at 6:12:53 AM
permalink
Really?
In typical gambler fashion, youre trying to assign meaning to meaningless coincidences.
Its just a coincidence. Shit happens.
In typical gambler fashion, youre trying to assign meaning to meaningless coincidences.
Its just a coincidence. Shit happens.
I invented a few casino games. Info:
http://www.DaveMillerGaming.com/
Superstitions are silly, childish, irrational rituals, born out of fear of the unknown. But how much does it cost to knock on wood? 😁
November 20th, 2020 at 7:28:38 AM
permalink
There are 365 days in the year but if you have 25 people in a room it is likely 2 or them will have the same birthday.
At my age, a "Life In Prison" sentence is not much of a deterrent.
November 20th, 2020 at 9:57:05 AM
permalink
I heard that there were three brothers born on the same day. I think it was the McManus triplets.
November 20th, 2020 at 12:56:27 PM
permalink
Similarly, my oldest brother was born on Jan 22, my other brother born on April 22, and me (the youngest) born on July 22. Different years, obviously.
November 20th, 2020 at 1:03:31 PM
permalink
Quote: rsactuarySimilarly, my oldest brother was born on Jan 22, my other brother born on April 22, and me (the youngest) born on July 22. Different years, obviously.
Would be a lot more unlikely had you all been born the same year on those dates.
At my age, a "Life In Prison" sentence is not much of a deterrent.
November 20th, 2020 at 2:58:10 PM
permalink
A friend of mine was a WWII veteran, so when he died he was buried in a national cemetery. Since the cemetery assigns the plots according to when the decedents arrive, I was not terribly surprised when I noticed the veteran buried adjacent to my friend shared the same date of death. However, I WAS surprised to see that they also shared the same date of birth: day and year.
Dog Hand
Dog Hand
