answersLogoWhite

0


Best Answer

http://answerboard.cramster.com/statistics-and-probability-topic-5-292446-0.aspx

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Find the probability that in a family of 4 children will be a at least 1 boy b At least 1 boy and 1 girl Assume that the probability of a male birth is 12?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Statistics

What is the probability that at least 2 people have the same birth month in a group of 8 people?

Birth months are not uniformly distributed across the year. However, if yo assume that they are, the probability is 0.9536 (approx).


What is the probability of having three boys in a row?

This question is extremely poorly phrased. The probability of three boys [sitting] in a row at an all boys school is 1. At an all girls school it is 0 and is otherwise somewhere in between. If the question is about birth order, do you take account of the fact that nearly half the families have two or fewer children? So that in half the cases the probability is 0. Finally, children's genders are not independent events. They depend on the parents' ages and their genes. However, if you assume that they are independent events then, given that the probability of a boy is approx 0.52, the probability of giving birth to three boys in a row is 0.523 = 0.1381


What is the probability of getting pregnant with birth control and a condom?

the probability is very small


What is the probability of randomly selecting a three-child family with exactly two girl children?

2/6 is not accurate. using a theoretical method for equally likely outcomes, there are 2 possible outcomes for each birth: either a boy(B), or a girl (G). For a family of three children, the total number of possibilities (birth orders) is 2*2*2=8 to double check this work, here are the eight possible outcomes:BBB, BBG, BGG, GBB, GBG, GGB, and GGG. You want EXACTLY two girls, this assumes that the other must be a boy. Therefore, the probability that a three child family has 2 girls one boy is P(2 girls)=3/8=0.375


What is the probability of a couple giving birth to five girls in a row?

Probability of girl, assumed to be 0.5. Therefore, probability of 5 girls is 0.5^5 or 0.03125.

Related questions

A women gives birth too a son.Two years later she gives birth to another son.What is the probability that her third child will be a girl?

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.However, if you assume that they are independent events then, the probability that the third child is a girl is the same as the probability that any birth is a girl - which is 0.48 across the world.


What is the probability that at least 2 people have the same birth month in a group of 8 people?

Birth months are not uniformly distributed across the year. However, if yo assume that they are, the probability is 0.9536 (approx).


What is probability that 2 persons sharing same birth date?

If you assume that birth dates are uniformly distributed over the year (they are not), and you ignore leap years, then the probability of two people selected at random, share a birthday is 1/365.


What is the probability of having three boys in a row?

This question is extremely poorly phrased. The probability of three boys [sitting] in a row at an all boys school is 1. At an all girls school it is 0 and is otherwise somewhere in between. If the question is about birth order, do you take account of the fact that nearly half the families have two or fewer children? So that in half the cases the probability is 0. Finally, children's genders are not independent events. They depend on the parents' ages and their genes. However, if you assume that they are independent events then, given that the probability of a boy is approx 0.52, the probability of giving birth to three boys in a row is 0.523 = 0.1381


What is the probability of giving birth to twins?

about 1/300, but it also depends on age and family history


How much can a spouse help his family?

If you mean your birth family as opposed to your wife and minor children , the wife and children are your primary responsibility .To help birth family members they can be helped, but you and your wife nust agree to what extent.


Most kids in one family?

The most children in one family record belongs to the Feodor Vasilyevich family. The mother gave birth to 69 children in her lifetime during the 1700s.


What is the probability of getting pregnant with birth control and a condom?

the probability is very small


What is known about shakespeares birth?

Not much is known about his birth. The record exists of his christening, on April 26th, and most children in Stratford in that period were christened three days after their birth; so it is reasonable to assume that Shakespeare's birth was on the 23rd, but there is no proof of it.


Is it safe for children to eat pate?

The NHS Birth to Five Years book states that pate must not be given to children under the age of 1. Therefore assume that it is fine for children above this age.


How does the availability of family planning influence the number of children?

Family planning allows a couple to plan the number of children, the time between births, and offers birth control options.


What has the author Max Heine written?

Max Heine has written: 'Children' 'Children - blessing or burden' -- subject(s): Birth control, Christianity, Family size, Religious aspects, Religious aspects of Birth control, Religious aspects of Family size