Viewing 40 posts - 401 through 440 (of 463 total)
  • The boy-girl puzzle
  • WorldClassAccident
    Free Member

    400?

    Drac
    Full Member

    I have 2 coins one in each hand one is a head what’s in my left hand?

    bomberman
    Free Member

    im not being shouty and abusive?? what kids you’ve got mike is irrelevant. don’t use childs tactics to make me look wrong because it wont make you look any more right! i wasnt meaning YOUR kids i was trying to make a point, clever dick.

    it just goes to show you can’t argue with an idiot. girl/boy and boy/girl mean the same thing and thats fundamentally where you are going wrong. a mixed pair is a mixed pair. a boy and a girl sat infront of you will still be a boy and a girl no matter what way you look at it.

    Fresh Goods Friday 696: The Middling Edition

    Fresh Goods Friday 696: The Middlin...
    Latest Singletrack Videos
    Drac
    Full Member

    I have 2 coins one in each hand one is a head what’s in my left hand?

    GrahamS
    Full Member

    Yes you are being shouty and abusive – and yes you are wrong.

    Start with 100 families with no kids and tell me what distribution YOU get after they all have two kids.

    miketually
    Free Member

    im not being shouty and abusive??

    So calling me a CRETIN and a PENARSE was a constructive argument was it?

    miketually
    Free Member

    I have 2 coins one in each hand one is a head what’s in my left hand?

    Good example.

    Drac
    Full Member

    Good example.

    It’s the simplest form to explain it but Bomberman’s head must have exploded trying to prove 50/50.

    Smee
    Free Member

    Drac – 50:50 chance its a head. 50:50 chance you have a head and a tail.

    I was out playing in the snow.

    miketually
    Free Member

    Smee’s back! We might get to 500 posts 🙂

    bomberman
    Free Member

    drac its either a head or a tail

    Drac
    Full Member

    Drac – 50:50 chance its a head. 50:50 chance you have a head and a tail.

    Read the question and you answer tell me what’s wrong.

    Drac
    Full Member

    drac its either a head or a tail

    Correct but please show the odds of what is likely.

    bomberman
    Free Member

    head/head 50%
    head/tail 50%

    Drac
    Full Member

    head/head 50%
    head/tail 50%

    How does that show what is in my left hand?

    miketually
    Free Member

    bomberman – you should probably read the other ten pages before you decide.

    MTT
    Free Member

    Thankfully i don’t post on here much these days and didn’t get involved in this. Not read past the first page but here is my take;

    BB – Disc
    BG
    GB
    GG

    So, 2/3 of mixed pair.

    Ambiguity lies in the question and how you obtain the information about the child, if the mother is selected for her having a girl (ie. met mother and daughter) then the answer (by logic) is 1/2. But that doesn’t apply here, because that wasn’t the question.

    bomberman
    Free Member

    you showed whats in your left hand – it was a head (LMAO!)

    Smee
    Free Member

    Drac – it is a 50% chance that you will have a head in your left hand.

    Following on from that there is a 50% chance that you will have a matching pair.

    GrahamS
    Full Member

    bomberman: Or tell me how YOU think the 100 families have after one child is born, and after two children.

    Drac
    Full Member

    you showed whats in your left hand – it was a head (LMAO!)

    So you can’t explain it then.

    miketually
    Free Member

    you showed whats in your left hand – it was a head (LMAO!)

    No he didn’t. He just said one was a girl.

    GrahamS
    Full Member

    MTT: Ambiguity lies in the question and how you obtain the information about the child, if the mother is selected for her having a girl (ie. met mother and daughter) then the answer (by logic) is 1/2. But that doesn’t apply here, because that wasn’t the question.

    Correct MTT.

    Drac
    Full Member

    Drac – it is a 50% chance that you will have a head in your left hand.

    Following on from that there is a 50% chance that you will have a matching pair.

    No there’s not all you know is there’s one head, so it eliminates the T/T combination.

    [strike]T/T[/strike]

    H/H
    T/H
    H/T

    Is the combinations you have left.

    bomberman
    Free Member

    sorry my bad. it dosen’t show what was in your left hand. is there a point to this? you’d better out it now before you forget.

    GrahamS
    Full Member

    you showed whats in your left hand – it was a head (LMAO!)

    Drac’s lack of punctuation is forgivable given that he is on nights, but it may be confusing you bomberman. He said “I have 2 coins; one in each hand. One is a head. What’s in my left hand?”

    He didn’t say which hand was holding the head.

    Drac
    Full Member

    My lack of punctuation in confusing at the best of times.

    sorry my bad. it dosen’t show what was in your left hand. is there a point to this? you’d better out it now before you forget.

    Read what I put above and treat L/R how many time does head appear in L column?

    bomberman
    Free Member

    it’s the question.

    [/quote]So what are the odds that she has a girl and a boy?

    in your eyes would the answer be different if the question said “so what are the odds that she has a boy and a girl?”

    miketually
    Free Member

    in your eyes would the answer be different if the question said “so what are the odds that she has a boy and a girl?”

    Nope, the answer would be the same. 66%

    GrahamS
    Full Member

    In other words, contents of left hand is 50/50 for Head or Tail, Content of right hand is also 50/50 for Head or Tail

    Possible combinations are:
    LEFT -- RIGHT
    Head -- Head
    Head -- Tail
    Tail -- Head
    Tail -- Tail

    If you know he definitely has a Head in one of his hands then you can eliminate Tail — Tail – leaving three possible combinations, two of which have Heads in his Left hand. 2 out of 3 = 66%

    Nice example Drac.

    Drac
    Full Member

    Nice example Drac.

    Thanks it makes it very simple though so some what kills the challenge.

    TheSanityAssassin
    Full Member

    miketually – Member

    Yes, but why would you ask her the original question?

    So you can find out who the less intelligent people are.

    What kind of smug coont makes a statement like that?

    Drac
    Full Member

    What kind of smug coont makes a statement like that?

    A clever coont.

    MikeG
    Full Member

    Drac, I think you’ve got a coin in your left hand.

    BTW I queried the boy/girl girl/boy thing on page one, I understood the reason I was wrong before the end of the page.

    bomberman
    Free Member

    girl/boy and boy/girl are the same, regardless of the 100 families theory. the fact that 100 families spawn 50% mixed, 25% bb and 25% gg has nothing to do with it. there are still 3 options to choose from and when you take them into the context of the question the other 99 families have absolutely nothing to do with it.

    and by the way i just flipped a coin and it came out 70/30 in favour of tails, even though the odds were 50/50 so that puts your 100 families theory right out the window. when the question says it’s a 50/50 chance it means biologically speaking.

    bomberman
    Free Member

    yes but we’re not talking about holding each child in a particular left or righ hand! you are adding a left/right variable that simply dosent exist in the original question! if you can’t understand this then i guess i’m the more intelligent one!

    Smee
    Free Member

    There is a 100% probability that a higher that average number of people involved in this thread have the memory of a gold fish and forget what they’ve just said.

    Either that or there is one hell of an echo in here. 😀

    Drac
    Full Member

    So not 2 coins then?

    Drac
    Full Member

    yes but we’re not talking about holding each child in a particular left or righ hand! you are adding a left/right variable that simply dosent exist in the original question! if you can’t understand this then i guess i’m the more intelligent one!

    It does exist the combination is still there but some can’t see that.

    That and you were still convinced it was 50/50 for the coins.

    bomberman
    Free Member

    read the question:

    what are the odds that she has a girl and a boy?

    not what are the chances that she has girl boy and not boy girl??

Viewing 40 posts - 401 through 440 (of 463 total)

The topic ‘The boy-girl puzzle’ is closed to new replies.