There are 2 types of sexualality, male and female.

There is a 50% chance to have a female or male during each conception.
So there is a 50% chance to have 3 daughters or sons.

Dan
DemoCommando Reviewed by DemoCommando on . Genetics/Biology help!!! i have some Biology HW... i just don't understand it... Can anyone here help me with questions like "what are the probabillity of a family having three daughters?" anyone want to help? Please :) -peace i'll post the questions if someone here knows how to do this type of stuff, i just don't get it :confused: Rating: 5