Girls have more brothers than boys, because a boy is not a brother to himself. Assume that both genders are equally likely on the birth of a child. State whether or not you believe this satement is true and give reasons. Explain how you might determine whether your answer is correct.
2007-02-05 16:10:17 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
1)A boy = Boy has no brother
2)A girl = Girl has no brother
3)A boy and a girl = girl has one brother, boy has no brother *
4)2 girls = both girls has no brother
5)2 boys = both boys have a brother
The above are example of 5 families comprising a total of 4 boys and 4 girls. Family 1 & 2 has not issue on brotherhood, nevertheless family 3 4 & 5, i see 2 boys having brother and only 1 boy don't, wherelse 2 girls don't have brother but only 1does.
This statement of girls having more brothers than boys is not true for this combination of 2's. Is a trick question, to make believe girls has more brothers than boys in total perspective.
2007-02-05 17:20:19 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I can see the answer gridded on a square of possible all 2 children families GG GB BB BG
go from there to develop a general proof little friend
2007-02-06 00:47:07 · answer #2 · answered by G's Random Thoughts 5 · 0⤊ 0⤋
I suspect this is a homework question! Good luck.
2007-02-06 00:17:48 · answer #3 · answered by Barefoot 6 · 0⤊ 0⤋