probability
posted by nitz .
a couple is planning to have three children. Find the probability that the couple will have:
a.) 2 girls and 1 boy?
b.) 2 girls followed by a boy?
c.) at least 1 girl?
please answer my question thank you very much, have a good day!

There are 8 ways to have B G
a)2 girls and 1 boy > GGB GBG BGG
Prob = 3/8
b) 2 girls followed by boy >GGB
prob = 1/8
c) at least one girl, means exclude BBB
prob = 1  1/8 = 7/8
Respond to this Question
Similar Questions

odds of...
Does anyone know the odds of having Two girls as children as opposed to two males or one male and one female? 
Math
In a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely? 
maths
Hi Can anyone help please: Suppose that the births of boys and girls can be modelled by rollling a fair die with 27 faces, 14 of which represent a boy and 13 represent a girl. 1. Using this model, choose the option that is closest … 
maths
Hi Can anyone help please: Suppose that the births of boys and girls can be modelled by rollling a fair die with 27 faces, 14 of which represent a boy and 13 represent a girl. 1. Using this model, choose the option that is closest … 
math
A couple intends to have four children. Assume that having a boy and girl is equally likely event. a) List sample space b) Find the probability that couple has two boys and two girls; c) Find the probability that couple has at least … 
statistics
3. A couple is planning on having four children. Assume that the probabilities of the man fathering a boy or a girl are .50 and .50, respectively. What is the probability that a. exactly two will be boys, b. fewer than two will be … 
stat
couple plans to have four children what is the probability that three are girls and one is a boy 
Math
A newly married couple expected a boy and a girl or four children, occuring boy or girl has equal probability. Find the probability of success of their expectations. 
math
Myrza has three children a.If his oldest child is a girl, what is the probability that all the children are girls ? 
Math
A family has three children. Assuming a boy is as likely as a girl to have been born, what is the following probability?