Too many twins?

[maginker at yahoo.com]

> Robert wrote:
> 
> >I suppose that two sets of (identical?) twins, in different
> >years in the school, isn't statistically unusual.
> 
> Uh-oh, here comes the number of students debate . . .
> 
> Parvati and Padma are identical; I don't believe we learn this 'til 
GF 12 so 
> you are to be excused <g>.  Twins are born in 1 out of 78 births 
(prior to 
> fertility drugs), IIRC.  Fraternal (sororal?) twins are much more 
common 
> than identical, but I don't know what the proportions are.  If only 
one out 
> 4 sets of twins are identical, it's still statistically likely that 
a school 
> of 280 (the low-end guess) would have two sets of identical twins, 
if my 
> math serves (the latter is highly doubtful).
> 
> 

Hello, I thought that I would chime in on this being that I am one 
half of fraternal twins.  I have a twin sister.  I live in a small 
town of less than 5oo people, and our school, was an elementry and 
middle school combined.  When I was in 3rd grade I beleive, in my 
school of about 100 students there were 6 sets of twins.  Two of them 
were identical, and the other four were fraternal.  The place were I 
work, with about 20 employees, has two people with twins.  Me, and 
another, with an identical twin.

So, I do not believe it is impossible for two sets of identical twins 
to be in one school.  


Bryce