Philosophical math

You have to try this
Intro:
ok so. . .Dr. Richter my math teacher was telling us about how he had this really memorable math teacher in grad school that was actually 2 years younger than him, and was a real super hot shot type of guy. anyhow he was in the paper for a book he wrote, and the reviewer said it was a good book except for this one concept and so him and Dr. Starbird (the writer) went on and on, until they both gave up. And then my professor said that he thought the reviewer had a good point, and was actually right but his colleagues didn't agree. Ok so now
Math:
simple probability
ok if a lady has 2 children and the older one is a boy what are the odds that he has a sister. (assuming m to f ratio is equal)
Well you take all the possibilities
BB
BG
[GB
GG
the bottom 2 both have an older sister and are therefore eliminated, leaving only the top 2.]
and there both equally likely so it's 1 possiblity of a sister over 2 total possiblilites or half.
ok so you get that right
then . . .
ok if a lady has 2 children and one of them is a boy what are the odds that he has a sister.











now did you say half. . .cuz if you did . . .
BB
BG
GB and. . .
GG are possiblities but GG is void so you have 3 possible answers and 2 where he has a sister
so 2/3 are the odds he has a sister.

If that surprised you don't worry this is a known and agreed upon math fact,

Now that puzzle idea was in the book and that was similar to what was there but the reviewer like some and maybe all of yall did not know that ahead of time. but his puzzle was. . .

If a lady has a son named Victor what are the odds he has a sister
and the reviewer argued well the odds if he's the older brother is half, and the odds if he's the younger are half and since their equally probably it's half.
So my professor came up with a theoretical experiment

if there is a world of 400 families with 2 children each. .. and one in 10 boys happens to be named victor . . . lets see what happens
100BB. . . 18 families with 1 victor 1 family with 2 Victors see below for
100BG.. . 10 families with 1 Victor
100GB. . .10 families with 1 Victor
100GG. . .0 Victor's

the first B has one in 10 chance of being Victor so there are 10
of those 10 one in 10 of those should be named Victor which is . . .
9 families with one Victor and 1 with 2
and then of the remaining 90 families with out an older brother named Victor 10% of 9 of them will be named Victor. so. . .
you have 9families + 9families with one victor + 1family with 2 victors
there are a total of 39 families with Victor's and 20 of which have a sister
so the odds are 20/39 not what he expected to get, but leaning on the proof to say it is one half rather than 2/3

PHILOSOPHY:
ok math is widely reguarded as the most certain discipline, even over the natural science, yet everything in math is only there because people believe an argument.

ok that and umm. . .why are people so difficult I mean I was working and got excited cuz I had 4 people in the computer lab at one time not even including me
of course 3 of them were working together, on a stock project and one of their old professors came by and they asked for advice and first he only joked by low sell high, and then later he started giving kind of advice. . . and finally this kid started asking questions. . .well eventually he was like that's good that's good now you're asking the right question I'm not gonna answer that but that's the right question
so how come people will answer questions until the right one is asked shouldn't it be the other way around.
anyhow this just me making observations about the world
we answer only what doesn't matter, and our most concrete and certain thing is entire abstract. Awesome huh. . look down the grounds not there oh wait forgot thats concrete >p
well have fun and hope I didn't bore you to much