zero...
25%
50%, the Father's contribution decides the sex of a child.
Children's genders are not independent and therefore there is no simple answer. However, if you do assume that their genders are independent then the probability is 1/3.
The probability of an event is easily calculated by dividing the number of squares that predict the event by the total number of squares. For example, if a man and woman were having a child, and the man was tall with brown hair and the woman short with blonde hair, the probability of the child being, say, tall with blonde hair, would be 1(number of squares with tall/blonde as a result) divided by 4(total number of squares), which is .25, or 25%
In general, the probability that any child will be a girl is approximately 1 in 2. It is like flipping a coin. There is a 50-50 chance for a specific outcome each time. It would be less likely that a woman would have three sons than that she have two sons and one daughter, but each individual outcome is a 50-50 chance. If this is a brain teaser, since we are given that the woman has given birth to two sons, it could imply that any other children she has are daughters, in which case the probability is 100% - if we know that she has other children.
25%
No, the child has to have one of the parents blood type.
Yes. The woman has a genotype of BO. Each child is a "reset" of the 50/50 probability of being group O or group B.
No, a child with type O blood can not be born of a woman with AB blood type.
The child will have either A or B blood type
25% for blood type O, 50% for blodd type AB, and 25% for A.
no
50%, the Father's contribution decides the sex of a child.
i believe so!
No the placenta produced and cleanses the blood fetus
no
no