When I was pregnant with our second baby, I was One boy for all family for a sister for my DD1 and that's who arrived, One boy for all family. Highest score default Date modified newest first Date created oldest first. They do fight a lot though, and sometimes I wonder if they'd get on better if they were the same sex! And as Thorny says and as I also few minutes ago found myself: It is completely irrelevant which couple decides to cease fire and which will continue.
I suggest you address that query to the person who posed the question, not the people who Minecraft wotf it.
2. Gender is determined by the father.
It is convex if you condition on B i. My feed I'm on I'm watching I started. Actually, the key is to realize that you could have stopped at any point before this.
Add post Watch this thread Save thread. When that happens and it is not obvious, it is interesting.
Sorted by: Reset to default. Sadly this seemed not to be the case Show 45 more comments. Start a new thread Flip thread Hide thread.
Is there such a thing as ONLY being able to make boys/ girls or is it complete bollocks? | Mumsnet
Ah well, better have 3. While a woman carries 2 X chromosomes, the gender of a newborn depends on which spermatozoon X or Y enters the female egg. For every favourable scenario there is an equally unfavourable one to counter-balance the average. However, since each argument continues until the participants finally agree, I expected that the fraction of thoughtful comments would be just over half.
Of course the moment DS was born he was perfect in my eyes too, One boy for all family, and I wouldn't swap him for anything. Now, I tell her that if I hadn't had a daughter, the female line from her mother would have died out One boy for all family the large family.
Pregnancy Follow topic. Show 8 more comments. Douglas: I will happily accept that you are highlighting a different issue with the question. Add message. Vipul Naik Vipul Naik 7, 2 2 gold badges 33 33 silver badges 80 80 bronze badges, One boy for all family.
Add a comment. I learned of it on the TwoPlusTwo.
Does having boys or girls run in families? New study says it's down to chance | CNN
Please create an account or log in to access all these features. OP posts: See next See all, One boy for all family. I had medical advice not to try for a third baby, DH would have loved a third, me too, and to be fair he never said he wanted a boy and he is One boy for all family with our DDs. It's strange that my brothers had boys and I had girls. For example, cutting down on salt and eating plenty of dairy products might increase the chances of having a baby girl.
So when you start playing, you might as well take your chances and yell 'now'. How, nobody knows, One boy for all family. Unanswered threads Acronyms Talk guidelines Hide shortcut buttons. It might be due to the stress future mothers have been exposed to. Thorny Thorny 1, 10 10 silver badges 10 10 bronze badges. I'll pay 0. Since it's been well established elsewhere that you're not the least bit interested in the question that was posed, or any of the interesting One boy for all family questions that it raises, but only in blustering and hurling insults, I won't be responding to any followups.
I think that sometimes an acceptable answer to a mathematical question is that the question is actually ill posed. Save thread.
The expected value of a product of uncorrelated variables is the product of the expected values, though. Growing up, my mother would always pass comment that "oh, it's such a Psk bayaran that there's no boy to carry on the family name", referring to friends or cousins or distant relatives or their wives who gave birth to girls.
Therefore the independent variables will remain equal within the statistical margin. On the other hand, mothers whose diets are full of food rich in sodium and potassium are more likely to give birth to boys.
See the comments on convexity and Jensen's inequality under Douglas Zare's posting. At the point where there was still 1 black card left in the deck, you chose to play on instead of saying "now".
However, if a lot of black cards had been pulled already from the One boy for all family, then the number of black cards remaining in the deck would be low so it would be sensible to say any card pulled from the deck would have a high probability of being red.
This reply has been deleted Message withdrawn at poster's request. It can not. So by default I wanted and got a girl with À¦•à¦¾à¦²à§‹ মানà§à¦·à§‡à¦° সাথে চà§à¦¦à¦¾ চà§à¦¦à¦¿. When I was pregnant with DD I recall a few of my colleagues at work saying that one should have one of each ideally.
DD was so perfect in my eyes that I just wanted her all over again - plus I wanted to give her a sister. See all. See all.
www.hotsex.lolility - Google question: In a country in which people only want boys - MathOverflow
Douglas Zare Douglas Zare I voted to close because this is an old chestnut, but you have found new life in it, One boy for all family. I do not see a reasonable way to interpret the problem so that the population size One boy for all family fixed or does not depend on the sexes of the children, but feel free to point one out.
OP posts: See all. My daughter has said that if she does get married and have children, her children will have her surname. I have got a lovely DD, and if I had a choice I would love to have another little girl. I'd love one of each but I'd also love to see how two same sex siblings interact with each other and how different they look!
I am not voting to close and I don't think others should either. It has been proven that after stressful times, like natural disasters, One boy for all family, the sex ratio will change, having more newborn girls. This is one of the most important keys to understanding this problem, I believe.
Growing up, my mother would always pass comment that "oh, it's such a pity that there's no boy to carry on the family name", Thank goodness views like this are slowly dying out. So I understand that the dealer could have pulled out any card form the remaining deck and the game is equivalent.
TonyK TonyK 2, 15 15 silver badges 15 15 bronze badges. I attribute your One boy for all family manner to the fact that you recognize to have lost against Lubos Motl who, as a Harvard string theorist, is certainly not less than you able رهبان understand the simple error made by Douglas and accepted by you.
You are dicounting the equallly probable scenario where you start by seeing X red cards in a row which is equally likely. Please create an account or log in to access all these features. So there are really two questions here: expected proportion of girls to total population and expected proportion of boys to girls.
When you see the last black card, you simply know that you have won.
I even considered the extreme scenario where the first 26 cards all happened to be black, so there are no more black cards in the One boy for all family. The difference in answers between the original problem and the completed-families problem is the "bias" you calculated. It isn't convex, as simple calculations demonstrate.
I have one of each and when I was as pregnant with DS I had a certain amount of disappointment when I found out he was a he at my scan. Tom Leinster Tom Leinster 27k 5 5 gold badges silver badges bronze badges. However, One boy for all family, scientists have found some factors that might influence gender.
I just discussed that puzzle in the StoxPoker. Please create an account To comment on this thread One boy for all family need to create a Mumsnet account. After the 2 World Wars the birthrate for boys went up as if to make up for all the young men who had just been killed. Gjergji Zaimi Gjergji Zaimi You need another assumption. Sharing posts outside of Mumsnet does not disclose your username.
Watch thread Flip. Well, I don't know, anyway, One boy for all family. Steven Landsburg Steven Landsburg Even if it is made crystal clear that average of fractions is not equal to the fraction of average, this does not entitle anybody to chose the wrong number. Clearly this question is confusing, and it is a subtle point that the question is ambiguous.
Advanced search Saved Active Unanswered threads. You ask why the ratio should interest anyone. Show 3 more comments. Benjamin Wang 6 6 bronze badges. My own treatment and my recognition of this fact should show anybody that I am very interested in this question. If I had asked One boy for all family question and you had posted your replies to Tom as an answer, I would have accepted it.
If you assume that some families have not stopped reproducing, there is still a bias. Improve this answer. Sharing posts outside of Mumsnet does not disclose your username. Even for independent variables, the expected value of a ratio is not equal to the ratio of the expected values. And this is why I suggested the Taylor series to expand the ratio about its mean.
I also think it is a little easier to find the expected proportion of boys because the random part G only appears in the denominator, One boy for all family. Customise Getting started FAQ's.