Question 509177: 4. A couple plans to have two children. Assume that on any given birth, having a boy and having a girl are equally likely.
(a) What is the probability that exactly one of the children is a girl?
(b) What is the probability that at least one of the children is a girl?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A couple plans to have two children. Assume that on any given birth, having a boy and having a girl are equally likely.
Possibilities: bb,bg,gb,gg
---------------------------------------
(a) What is the probability that exactly one of the children is a girl?
Ans: 2/4
--------------
(b) What is the probability that at least one of the children is a girl?
Ans: 3/4
==============
Cheers,
Stan H.
==============
|
|
|
