I actually do remember from my early school days that we were told that
there is more boys than girls born and the explanation was to the best of my
recollection (we're talking very early classes that teach about people, I
was maybe about 10-11 years old) that females are sturdier "by biological
design" and their survival rates are higher; that inequality in ##s was
supposed to even out by around 18-20. As such, this matter might be actually
widely available in some intro textbooks...
Wolfgang, I'd be really curious to see what you actually find.
Thanks
Zina
----- Original Message -----
From: Donald F. Burrill <[EMAIL PROTECTED]>
To: Wolfgang Rolke <[EMAIL PROTECTED]>
Cc: edstat <[EMAIL PROTECTED]>
Sent: Saturday, January 22, 2000 2:39 PM
Subject: Re: Sex ratio
> On Sat, 22 Jan 2000, Wolfgang Rolke wrote:
>
> > I am looking for information (journal article, web site ect.) on
> > the difference in birth rates for boys and girls. Specifically I would
> > like to find some real data and possible explanations for this
> > phenomena. [Phenomenon? -- DFB] It seems to me that this would make
> > a great example for an introductory stats course.
>
> Look in the several annual Statistical Abstracts of the United States
> for vital statistics.
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