Posted by katt0109 on Wednesday, November 19, 2008 at 9:53pm.
Here are the ways it can happen:
all boys, only one way.
bbbb
three boys, one girl, four ways:
bbbg
bbgb
bgbb
gbbb
2girls, two boys six ways.
ggbb
gbgb
gbbg
bggb
bgbg
bbgg
three g, one boy, same as 3b,one g four ways.
four girls
gggg one way.
so probaby of two girls, two boys..
= six/total ways=6/16= 3/8
Related Questions
math - A couple intends to have four children. Assume that having a boy and girl...
help... probability - The Smith family has 4 children that are all girls. What ...
maths - Hi Can anyone help please: Suppose that the births of boys and girls can...
maths - Hi Can anyone help please: Suppose that the births of boys and girls can...
Math - Assume that the probability is 1/2 that a baby born is a boy. If a couple...
Statistics - In planning a family of 4 children assume boys and girls are ...
maths-probability - A family has four children. The probability of having a girl...
maths - 1. A die labelled A has one face marked 1, one face marked 2 and the ...
probability - a couple is planning to have three children. Find the probability ...
math-Probability - In a classroom of children (10 boys and 8 girls), six ...
For Further Reading
