answersLogoWhite

0


Best Answer

There is no simple answer to the question because the children's genders are not independent events. They depend on the parents' ages and their genes.
If you believe that the children's genders are not independent then you would need to get empirical evidence from all families with four or more children in which the first three children were girls. If there are g families in which the fourth is a girl and b where the fourth is a boy then the required probability is b/(g+b).

However, if you assume that the children's genders are independent events then, given that the probability of a boy is approx 0.52, the probability of the fourth child is a boy is 0.52

User Avatar

Wiki User

8y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: If a couple has three daughters what is the probability that the next child is a son if they already have three daughters?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the probability of a couple having a male child after already having 2 female children?

It is always 50/50.


What is the probability that a couple's first born child will be female and their second born child will be male?

50% then 25%


A couple has two female children What is the probability that their next child will be male?

50%


What is the probability that this couple will have a colorblind child?

Impossible to know without information about genes that the parents have. are the parents colorblind? etc.


What percent chance is there of a couple having three daughters in a row?

Each time they have a child, there is a 50% chance it will be female.Therefore the chance of getting three daughters in a row is 12.5% (0.5 X 0.5 X 0.5 = 0.125).


What is the probability of having 3 daughters in a row?

it one out 8 1/8 bc first child 1/2 second child 1/2 third child 1/2 1/2 x 1/2 x 1/2 = 1/8


What is the probability that a couple with three children will have at least one girl?

The individual probability that a child born will be female is 50% or 0.5.Using this we can calculate the probability that at least one of the children will be female by:calculating the probability that none of the children will be female and then subtracting this from 1.The probability that all the children are male is therefore 0.53 = 0.5 * 0.5 * 0.5 = 0.125.Thus the answer is 1 - 0.125 = 0.875 = 87.5%


What is the probability of a couple having four children in the following order girl girl girl boy?

It is not possible to answer the question because:the total number of children that the couple had is not known;the gender of the child depends [mainly] on the father, and is not 0.5;the gender of each child is not independent of the gender of previous children.


What is the probability that the 6 child family has exactly two girls?

The probability is 2 - 6


What is the probability of a man who has BB genotype and his wife who has BO genotype to have a child who is AB?

No probability. Neither parent has an "A" for the child to inherit to make an "AB".


What is the probability that parents that have 2 boys and one girl will have a girl next?

There is not enough information on the propensity for the parents to have a child of either gender and so it is necessary to assume that the probability of the gender of the next child is independent of the genders of preceding children. In that case the probability of the next child being a girl is 1/2.There is not enough information on the propensity for the parents to have a child of either gender and so it is necessary to assume that the probability of the gender of the next child is independent of the genders of preceding children. In that case the probability of the next child being a girl is 1/2.There is not enough information on the propensity for the parents to have a child of either gender and so it is necessary to assume that the probability of the gender of the next child is independent of the genders of preceding children. In that case the probability of the next child being a girl is 1/2.There is not enough information on the propensity for the parents to have a child of either gender and so it is necessary to assume that the probability of the gender of the next child is independent of the genders of preceding children. In that case the probability of the next child being a girl is 1/2.


What is the probability a child will be a male?

1 in 2