What is the probability that a couple will have a child that is a boy?

Explanation: It is customary to say that the probability of getting a boy is 12 . It may come as a surprise, but as we are not living in an ideal world, this is only an approximation. Data from the US and Scandinavia show that the true figure is more like 51\% for a boy and 49\% for a girl.

How do you calculate chances of having a boy or girl?

For “gender” calculations, the probabilities p and q are equal, both = 1/2 (the equal probabilities of male and female births).

What is the probability of at least one boy and at least one girl?

The probability of having at least one boy and one girl is the probability of any case except either of the two extremes = 1 – 1/16 – 1/16 = 14/16.

How many equally likely possibilities are there for the sexes and birth orders?

There are 8 possible outcomes, all equally likely (if we assume each gender is equally likely).

What is the probability that the family has more than one child?

On the other hand, if the birthday party is only for fifth-grade girls, you get a different answer. Assuming there are no siblings who are both in the fifth grade, the answer in this case is 1/2. The child in fifth grade is a girl, but the other child has probability 1/2 of being a girl.

Which month is best for baby boy?

Couples who want a boy should try to conceive in autumn and those who want a girl have a better chance if they can conceive in spring, a study has found.

What is the probability of getting at least one girl?

The probability of at least one girl is 1−14=34.

What is the probability that they will have at least one girl?

There’s a 50\% chance that any given child is a girl, so take . 5 to the 4th power and subtract it from 1, which gives you a 93.75\% chance that at least one child is a girl. Let us assume that there are only two possibilities for a child- either a boy or a girl, and both are equally likely.

What is the probability the couple will have 4 girls?

Each child has a probability of being a girl is 1/2. If there are 4 children in the family, the probability of all the four being girls is (1/2)^4=1/16.

How many different possibilities are there for boys and girls in a family of three children?

Since there are two genders and three children, that’s 23=8 permutations.