Posted by Cheril on Thursday, April 5, 2012 at 5:50pm.
Below is a sample space for a family with 3 children. BGG stands for the oldest child being a boy, the middle child a girl, and the youngest a girl. Use the sample space to answer the question:What is the probability (in simplest form) that the middle child is a boy? _____
Sample Space
BBB
BBG
BGB
BGG
GBB
GBG
GGB
GGG

math  Ms. Sue, Thursday, April 5, 2012 at 5:57pm
I'll be glad to check your answer.
This site may help you.
http://www.mathsisfun.com/data/probability.html 
math  Cheril, Thursday, April 5, 2012 at 6:01pm
okay.. so my answer is: 4/8=1/2?
simplest form=1/2
is it correct? 
math  Ms. Sue, Thursday, April 5, 2012 at 6:06pm
That is correct!

math  Cheril, Thursday, April 5, 2012 at 6:09pm
okay,thank you!

math  Ms. Sue, Thursday, April 5, 2012 at 6:57pm
You're welcome.