Identical twins come from a single egg that split into two embryos and fraternal twins are from separate fertilized eggs Also identical twins must be of the same sex and the sexes are equally likely and sexes of fraternal twins are equally likely If a pregnant woman is told that she will give birth to fraternal twins what is the probability that she will have one chile of each sex Use the data table below to find the probability Identical Twins Fraternal Twins boy boy 4 8 boy girl 0 9 The probability is Type an integer or a simplified fraction girl boy 0 9 girl girl 4 8 Sexes of Twins