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FlyerTalk Forums (https://www.flyertalk.com/forum/index.php)
-   CommunityBuzz (https://www.flyertalk.com/forum/communitybuzz-380/)
-   -   A List of Birthdays (https://www.flyertalk.com/forum/communitybuzz/195643-list-birthdays.html)

rkt10 Sep 19, 2003 3:12 pm
April 9 for me.

Craig6z Sep 19, 2003 5:31 pm
SXJ,

Same back to you!

Craig

_________________

Interesting sidelight about 25 July. My office has 80 people in it, and 5 have our same birthdays. Odds of that would be pretty high, I'd guess.

arturo Sep 20, 2003 6:55 am
bourne on the foreth of july

arturo mak misteak on hes birfdey, et es march sekond.

edioted bye arturo too korect birfdey

------------------
Loving, Caring, http://www.flyertalk.com/forum/wink.gifHonest http://www.flyertalk.com/forum/wink.gif, Intelligent, Empathetic, Creative, and GivingŠ.

[This message has been edited by arturo (edited 09-21-2003).]

rkt10 Sep 20, 2003 4:52 pm
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by arturo:
bourne on the foreth of july

</font>
no way!

FewMiles Sep 20, 2003 5:16 pm
Interesting fact: if you have 23 people together in a room, the probability that two or more people share a common birthday is greater than 50%. This is true, even taking leap years into account.

FewMiles..

Craig6z Sep 20, 2003 5:25 pm
FewMiles,

Can you explain the math behind the 23 people, odds are greater then 50%? Also, how do you calculate the odds on 5 out of 80?

Craig

alb222 Sep 20, 2003 5:40 pm
October is a great month.......10/22 for me!

UA_Eagle Sep 20, 2003 10:45 pm
Aug 27th here for me....

FewMiles Sep 21, 2003 12:46 am
Craig6z, here's how to calculate it.

The probability that 23 people in a room all have distinct birthdays is calculated this way:
  • The first person has some birthday X.
  • The probability that the second person doesn't have the same birthday is 365/366.
  • The probability that the third person has a birthday different than the first two is 364/366.
  • Keep going until you reach the 23rd person.
  • Multiply all these terms together and you get something just over 0.49 or 49%.
  • Remember that this is the probability that all 23 people have distinct birthdays.
  • The opposite case, that there is at least one occurence of a common birthday, would be 100% minus the above probability which gives an answer of just over 50%.

I hope that made sense. http://www.flyertalk.com/forum/smile.gif

FewMiles..

[This message has been edited by FewMiles (edited 09-21-2003).]

FewMiles Sep 21, 2003 12:52 am
gonna have to think about the 5/80 one... my brain is not functioning at this hour. http://www.flyertalk.com/forum/redface.gif

FewMiles..

blairvanhorn Sep 21, 2003 5:53 am
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by skofarrell:
14-Sept for me.

And Blair didn't send a card http://www.flyertalk.com/forum/frown.gif</font>
Dang! Sorry about that - the postal service is on strike again here in Freedom! http://www.flyertalk.com/forum/biggrin.gif

Happy belated, sir!

opus17 Sep 21, 2003 8:27 am
I think we should have one standing Happy Birthday thread for everyone, this is plainly going to get out of control!

As for a commie like me, May Day is an approriate birthday.

pynchonesque Sep 21, 2003 2:19 pm
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by FewMiles:
Should blairvanhorn have multiple entries on your list?</font>
Four birthdays every year -- that's why he's already well into his thirties!

belle3388 Sep 21, 2003 2:22 pm
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by pynchonesque:
... well into his thirties!</font>
HCYBSMTB?!

a1bengal Sep 21, 2003 2:49 pm
right there with ljp99 on Sept 26th aging soon cheers Jane


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