>>1963260>How do you know?The odds of M and F are both 0,5; so p(1)=p(M)=0,5. p(2)=p(FM)=0,5^2, p(n)=p(n-1)*0,5=0,5^n
The expected value of the amount of children then becomes sum(n*0,5^n;n=1 to infinity)
I didn't feel like doing any manual calculations so i used wolfram, but the expected value is 2
Given that there is always 1 male, there is on average 1 female and the ratio is therefore 1:1
With the recursive method: n=1+0,5n so n=2 with one male so 1:1 ratio (just draw out the probability tree and you'll see)
>>assuming they keep shitting out females as long as they can>Why is this relevant?because you're counting all the way to infinity. Also the recursive way is no longer valid if you stop having females even if no male is born yet.
