Table of Contents
- 1 What is the probability that if a couple has 4 children that they will have 2 boys and 2 girls?
- 2 What are the chances that a couple will have 4 children in a row that are all boys?
- 3 How many combinations can you have with 4 kids?
- 4 How likely is it to have four boys?
- 5 What is the probability that in a family of 4 children?
- 6 How many different 3 child families are possible if birth order is taken into account?
- 7 What is the probability of having 2 girls and 3 boys?
- 8 How many families with at least one boy are there?
- 9 What is the probability of getting an out with 25 hits?
What is the probability that if a couple has 4 children that they will have 2 boys and 2 girls?
2 Answers By Expert Tutors This is a Binomial Distribution Problem. 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. if you have 4 children these are the possibilities…
What are the chances that a couple will have 4 children in a row that are all boys?
If you already have a boy, the chance that the next baby is also a boy is 50 percent
| All same sex | Different sexes | |
|---|---|---|
| 2 children | 50\% G/B | 50\% B/G |
| 3 children | 25\% all girl or all boys | 75\% BB/G or GG/B |
| 4 children | 12.5\% all girls or all boys | 37.5\% 1B/3G or 1G/3B |
| 5 children | 6.25\% all boys or all girls | 25\% BBBB/G or GGGG/B |
What is the probability that in family of 4 children there will be at least one boy?
The probability of having four boys is 1/2 * 1/2 * 1/2 * 1/2 = 1/16, and the probability of four girls is the same. The probability of having at least one boy is the probability of any case except four girls = 1 – 1/16 = 15/16.
How many combinations can you have with 4 kids?
So, there are 2^4 = 16 possible birth orders for four children.
How likely is it to have four boys?
Couples with 4 children: 12.5\% of couples have 4 girls or 4 boys, 37.5\% will have 1/3 and 50\% will have 2/2. Couples with 5 children: 6.25\% have 5 the same sex and in couples with 6 children, 3.125\% will have the same sex.
What’s it like having 4 boys?
Yes, having 4 little ones running around is noisy, messy, and on average pretty chaotic. There are frequently competing demands on the parents. The baby needs a snack while an older child needs help with their homework, and 2 others are arguing. A house with 4 kids is not often quiet.
What is the probability that in a family of 4 children?
The easiest probabilities to calculate are the extremes. The probability of having four boys is 1/2 * 1/2 * 1/2 * 1/2 = 1/16, and the probability of four girls is the same. The probability of having at least one boy is the probability of any case except four girls = 1 – 1/16 = 15/16.
How many different 3 child families are possible if birth order is taken into account?
There are nothing different three-child families possible if birth order is taken into account.
How many birth orders are possible?
There are 64 possible gender birth orders, with 20 of these resulting in you having three girls and three boys.
What is the probability of having 2 girls and 3 boys?
Girl or boy have probability of 1/2 to be born. So 2 boys and 3 girls to be born into a family have the probability (1/2)^5, considering different orders of birth the probability is [5!/ (2!3!)]/32 = 10/32 = 0.3125 = 31.25\% The probability of at least 1 boy born in the family is the complement of all the 5 born being girls.
How many families with at least one boy are there?
Applied to 1000 families, it is expected to have approximately 937 families with at least one boy. Out of 320 families with 5 children each, what percentage would be expected to have 2 boys, 3 girls, and at least one boy? Assume equal probability for boys and girls.
How do you find the joint probability function of two variables?
The joint probability function of two discrete random variables X and Y is given by f(x, y) c(2x y), where. x and y can assume all integers such that 0 x 2, 0 y 3, and f(x, y) 0 otherwise. (a) Find the value of the constant c. (c) Find P(X 1, Y 2).
What is the probability of getting an out with 25 hits?
If a random sample of 25 customers are selected, what is the… A statistics practitioner determined that if a batter hits a line drive, the probability of an out is 23\%. Determine the probability that in a game with 25 line drives, there are 5 outs or less.