SOLUTION: Johnny says that if a family has two children, then. the only possibilities are two boys, two girls, or one boy and one girl. Because there are only three possibilities, Johnny cla
Algebra.Com
Question 722990: Johnny says that if a family has two children, then. the only possibilities are two boys, two girls, or one boy and one girl. Because there are only three possibilities, Johnny claims the probability of having two boys is 1/3. Is Johnny correct? Why or why not?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Johnny says that if a family has two children, then. the only possibilities are two boys, two girls, or one boy and one girl. Because there are only three possibilities, Johnny claims the probability of having two boys is 1/3. Is Johnny correct? Why or why not?
----
No.
The possible arrangements are:
bb ; bg ; gb ; gg
---
Each has probability 1/4
=============================
Cheers,
Stan H.
RELATED QUESTIONS
Assume that each child that is born is equally likely to be a boy or girl . If a family... (answered by ikleyn)
Assume that each child that is born is equally likely to be a boy or girl. If a family... (answered by ikleyn)
the chances of having a girl or boy are about the same. Use a simulation to find the... (answered by stanbon)
A family has two children. Assume that boys and girls are equally likely, determine the... (answered by math_tutor2020)
A tree diagram shows the possibilites for boys and girls in a two-child family. If a... (answered by stanbon)
Assume the probability of a boy being born is the same as the probability of a girl being (answered by math_helper)
assuming that boy and girl babies are equally likely, find the probability that a family... (answered by edjones)
In a family with two children, what are the probabilities
of the following outcomes,... (answered by stanbon)
Hi. The problem is: "Find the probability that two parents with three children have all (answered by longjonsilver)