# Math Help - binomial probability!

1. ## binomial probability!

a couple plans to have three children. find the probability of getting exactly two boys and two girls

i used binomial and got $\frac{3}{8}+\frac{3}{8}= \frac{3}{4}$

pls query me otherwise, thanks

2. ## Re: binomial probability!

Originally Posted by lawochekel
a couple plans to have three children. find the probability of getting exactly two boys and two girls

i used binomial and got $\frac{3}{8}+\frac{3}{8}= \frac{3}{4}$ INCORRECT
Reread your posting. There cannot be three children if exactly two boys and two girls. That is four. Which is it?