Admin Table of Contents
- 1 What is the probability that the other child is a boy?
- 2 What is the probability of the second child is a boy a girl?
- 3 What is the probability for having two children?
- 4 What is the probability that a couple with four children does not have two boys and two girls?
- 5 How do you calculate probability example?
What is the probability that the other child is a boy?
There are three of them. BB, GB and BG. In only one of them is the ‘other child’ a boy. So the probability is one third.
What is the probability of the second child is a boy a girl?
1/2 chance
The only two options are the second child is a boy or a girl. It’s 50-50 or a 1/2 chance the second child is a girl. For the Joneses, however, you only know that one of the children is a girl, but not the order….The Two-Child Paradox.
| Older Child | Younger Child |
|---|---|
| Boy | Boy |
| Boy | Girl |
| Girl | Boy |
| Girl | Girl |
What is the probability of 2 girls and 2 boys?
There are 4C2 ways to have exactly 2 boys & 2 girls, in any order, so this gives 6/16 =3/8 as the correct probability.
What is the probability of having a boy after 3 girls?
If you already have a boy, the chance that the next baby is also a boy is 50 percent
| All same sex | ||
|---|---|---|
| 3 children | 25% all girl or all boys | |
| 4 children | 12.5% all girls or all boys | 50% BB/GG |
| 5 children | 6.25% all boys or all girls | 68.75% GGG/BB or BBB/GG |
| 6 children | 3.125% all boys or all girls | 46.875%: GGGG/BB or BBBB/GG |
What is the probability for having two children?
It there is a 50% chance that we will be told the first child is a boy, when there is one of each gender, then the probability of two girls is 50%.
What is the probability that a couple with four children does not have two boys and two girls?
The correct answer is 6/16 or 3/8.
What is the probability that a family with two children will have two girls?
There are three equally probable family-types: BG , GB , and GG ( BB was removed from consideration, because they have no girls). Since only one of the three has two girls, our chances of having two girls are 1/3.
How do you write probability?
The probability of an event can only be between 0 and 1 and can also be written as a percentage. The probability of event A is often written as P ( A ) P(A) P(A)P, left parenthesis, A, right parenthesis.
How do you calculate probability example?
For example, if the number of desired outcomes divided by the number of possible events is . 25, multiply the answer by 100 to get 25%. If you have the odds of a particular outcome in percent form, divide the percentage by 100 and then multiply it by the number of events to get the probability.