SOLUTION: If a single family having one girl is 1/2, then what is probability of a family with 3 children having at least 2 girls?
Algebra.Com
Question 1133445: If a single family having one girl is 1/2, then what is probability of a family with 3 children having at least 2 girls?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
At least 2 girls is 2 and 3
probability of 2 girls is 3(1/2)^3 or 3/8
probability of 3 girls is (1/2)^3=1/8
The total probability is 1/2.
RELATED QUESTIONS
A family has five children. The probability of having a girl is 1/2. What is the... (answered by stanbon)
A family has five children. The probability of having a girl is 1/2.what is the... (answered by fractalier)
If a family is planning to have 6 Children, what is the probability of having:
1) 5... (answered by mathmate)
if the probability of a child being a girl is 1/2, and a family plans to have 4 children, (answered by htmentor)
in a family of six children, what is the probability of having at least three... (answered by stanbon)
a family has 5 children. the probabilty of having a girl is 1/2. what is the probabilty... (answered by stanbon)
Assume the probability of having a boy is 50% and a girl is 50%. If a family has four... (answered by stanbon)
If the probability of having at least 1 boy in a 2-child family is 0.7, what is the... (answered by tommyt3rd)
Using a tree diagram, show all possible 'boy-girl' outcomes of a family having 3... (answered by stanbon)