A woman has two kids, one of them is a girl - Music Banter Music Banter

Go Back   Music Banter > Community Center > The Lounge > Current Events, Philosophy, & Religion
A woman has two kids, one of them is a girl A woman has two kids, one of them is a girl
Register Blogging Today's Posts
Welcome to Music Banter Forum! Make sure to register - it's free and very quick! You have to register before you can post and participate in our discussions with over 70,000 other registered members. After you create your free account, you will be able to customize many options, you will have the full access to over 1,100,000 posts.

View Poll Results: What are the chances the other is also a girl?
0% 1 9.09%
25% 0 0%
33% 4 36.36%
50% 5 45.45%
100% 1 9.09%
Voters: 11. You may not vote on this poll

Reply
 
Thread Tools Display Modes
Old 03-03-2013, 10:17 AM   #1 (permalink)
Music Addict
 
Join Date: Jun 2005
Posts: 3,561
Default
congrats on another horrible thread.
anticipation is offline   Reply With Quote
Old 03-04-2013, 12:28 PM   #2 (permalink)
Neo-Maxi-Zoom-Dweebie
 
Join Date: Apr 2011
Location: So-Cal
Posts: 3,752
Default
Quote:
Originally Posted by anticipation View Post
congrats on another horrible thread.
FRED HALE SR. is offline   Reply With Quote
Old 03-04-2013, 06:43 PM   #3 (permalink)
Music Addict
 
Join Date: Mar 2009
Posts: 1,711
Default
Quote:
Originally Posted by anticipation View Post
congrats on another horrible thread.
more productive than that 'MB was so much better back in the day' delusion youve been under


answer is 33% cause there's four different possibilities:

BG
GB
BB
GG

Because one of them is already a girl, that dismisses the possibility of BB, leaving:

BG
GB
GG

Since one of them is already a girl, 1/3 chance the other will also be a girl (GG)
midnight rain is offline   Reply With Quote
Old 03-04-2013, 08:20 PM   #4 (permalink)
The Music Guru.
 
Burning Down's Avatar
 
Join Date: Jun 2009
Location: Beyond the Wall
Posts: 4,858
Default
Quote:
Originally Posted by Tuna View Post
more productive than that 'MB was so much better back in the day' delusion youve been under


answer is 33% cause there's four different possibilities:

BG
GB
BB
GG

Because one of them is already a girl, that dismisses the possibility of BB, leaving:

BG
GB
GG

Since one of them is already a girl, 1/3 chance the other will also be a girl (GG)
I'm not sure if I understand this logic. Are you trying to use the Punnett square technique to determine sex? Because then all four choices would still apply for subsequent children.
Burning Down is offline   Reply With Quote
Old 03-04-2013, 09:41 PM   #5 (permalink)
Make it so
 
Scarlett O'Hara's Avatar
 
Join Date: Oct 2005
Posts: 6,775
Default
Quote:
Originally Posted by Tuna View Post
more productive than that 'MB was so much better back in the day' delusion youve been under
I think you and me are making the most threads lately! I go through phases of thread ideas. But yeah MB is just as good now as it was before. However people are a lot more whiney these days, including me!
__________________
"Elph is truly an enfant terrible of the forum, bless and curse him" - Marie, Queen of Thots
Scarlett O'Hara is offline   Reply With Quote
Old 03-04-2013, 09:45 PM   #6 (permalink)
Mate, Spawn & Die
 
Janszoon's Avatar
 
Join Date: May 2007
Location: The Rapping Community
Posts: 24,593
Default
Quote:
Originally Posted by Tuna View Post
more productive than that 'MB was so much better back in the day' delusion youve been under


answer is 33% cause there's four different possibilities:

BG
GB
BB
GG

Because one of them is already a girl, that dismisses the possibility of BB, leaving:

BG
GB
GG

Since one of them is already a girl, 1/3 chance the other will also be a girl (GG)
You're assuming that each of those possibilities are equally likely, which they aren't. I don't know how much it affects the numbers, but statistically there are slightly more males conceived than females. Also, there are a certain percentage that are neither male nor female.
Janszoon is offline   Reply With Quote
Old 03-05-2013, 04:18 AM   #7 (permalink)
Music Addict
 
Face's Avatar
 
Join Date: Oct 2012
Location: UK
Posts: 306
Default
Quote:
Originally Posted by Tuna View Post
more productive than that 'MB was so much better back in the day' delusion youve been under


answer is 33% cause there's four different possibilities:

BG
GB
BB
GG

Because one of them is already a girl, that dismisses the possibility of BB, leaving:

BG
GB
GG

Since one of them is already a girl, 1/3 chance the other will also be a girl (GG)
That isn't right...but then I though about it and it also made sense, but my answer wasn't wrong (!)

So I got frustrated, looked it up, and it's how the question is interpreted. There's a long article covering the different analysis..
Boy or Girl paradox - Wikipedia, the free encyclopedia (note in the article they switch the boy/girl)

Quote:
From all families with two children, at least one of whom is a boy, a family is chosen at random. This would yield the answer of 1/3.
From all families with two children, one child is selected at random, and the sex of that child is specified. This would yield an answer of 1/2.[3][4]
Interpretation1: out of all families with two children with at least one girl, what are the chances of selecting one with two girls? 1/3

or

Interpretation 2: A family with 2 children is selected, one is found to be a girl, what are there being two girls? 1/2
Last edited by Face; 03-05-2013 at 11:02 AM.
Face is offline   Reply With Quote
Reply

« Previous Thread | Next Thread »

Similar Threads


Terms & Privacy - Contact Us - Music Banter - Archive - Top

© 2003-2025 Advameg, Inc.