checking answers, thanks to all answer my questions
2006-10-10 18:52:50 · 4 answers · asked by foster0676@sbcglobal.net 1 in Science & Mathematics ➔ Mathematics
Exactly one girl or at least one girl?
Exactly one girl means that you want one girl (1/2 probability) and seven boys (1/2 ^ 7 probability), but there are 8 different ways to order this. So the answer is (1/2)^8 * 8 = 1/32. Kinda small but not impossible.
The simplest way to do at least one girl is "not entirely boys". Entirely boys would be 1/2 ^ 8, so not entirely boys is 1 - 1/2^8 = 255/256. This is an extremely high probability, because the chances of having no girls in 8 pregnancies is exceedingly small.
2006-10-10 19:01:33 · answer #1 · answered by geofft 3 · 1⤊ 0⤋
A scientific study showed that you can actualy swing the odds whichever way you want through eating habits. It is said that a male that wants to produce a boy should have a diet of high levels of protien and Iron. Carbohydrates are big in the genetic structure of creating a female. But, This is only a study and was said to boost percentages by only 15%. But hey, its a start
2006-10-10 19:05:18 · answer #2 · answered by Bobby the WOOD Heenan 4 · 0⤊ 0⤋
I used to go to school with a guy, his parents had 9 kids. All were boys, they kept trying in hopes of having a girl, but after 9 kids decided that that was enough and figured it wasnt likely they were going to have a girl after 9 boys.
2006-10-10 19:02:56 · answer #3 · answered by Autumn M 3 · 0⤊ 2⤋
1/128
2006-10-10 18:55:59 · answer #4 · answered by gjmb1960 7 · 0⤊ 1⤋