What are the chances of a couple having 3 daughters in a row?
There is hence a 1 in 2 chance (50\% or 0,5 probability) of either a boy or a girl on each occasion. Therefore, by the multiplication principle, the probability of having 3 girls in a row is 12×12×12=18 .
How can I increase my chances of having a baby girl?
Top tips for conceiving a girl
- have sex 2.5-4 days before you ovulate.
- keep an ovulation chart so you know when you are ovulating.
- have sex every day from the day when you finish your period.
- avoid having sex which involves deep penetration – missionary position is best.
What month is best to conceive a girl?
With Whelan’s method, you’re encouraged to have sex 2 or 3 days before ovulation or on the day of ovulation to conceive a girl. The idea behind the timing is that male and female sperm perform differently at different points in a woman’s menstrual cycle.
What are the chances the other child is a girl?
Information about the child. The chance the other child is a girl is 1 2. This is a very different procedure from ( 1) picking a two-child family at random from all families with two children, at least one a boy, born on a Tuesday. The chance the family consists of a boy and a girl is 14 27, about 0.52.
What is the probability of having two boys on a Tuesday?
Information about the child. The second term in the numerator is simply 1 4, the probability of having two boys. The first term in the numerator is the probability of at least one boy born on Tuesday, given that the family has two boys, or 1 − (1 − ε)2 (one minus the probability that neither boy is born on Tuesday).
How many children are selected from a family with two children?
From all families with two children, at least one of whom is a boy, a family is chosen at random. This would yield the answer of 1 3. From all families with two children, one child is selected at random, and the sex of that child is specified to be a boy. This would yield an answer of 1 2.
What is the probability of a father having two daughters?
But under that assumption, if he remains silent or says he has a daughter, there is a 100\% probability he has two daughters. If it is assumed that this information was obtained by looking at both children to see if there is at least one boy, the condition is both necessary and sufficient.