Rose plans to have two children but doesn't know if they are boy-boy, girl-girl, girl-boy, or boy-girl. What is the probability that she will have boy-girl? (1 point)

Question

mathmate · Answer

$\Omega = {BB,BG,GB,GG}$ for a total of 4 outcomes.
Probability=the number of favourable outcomes / total number of outcomes.
Here, favourable outcome would be those that are either BG or GB.

anonymous · Answer

Okay let me see if I have it

anonymous · Answer

So it'd be 1/2 right?

mathmate · Answer

Oh... after having reread the question, don't think Rose wants GB, so that reduces the number of favourable outcomes.
1/2 is good for my previous interpretation.  Sorry.

anonymous · Answer

Okay lemme reread it as well

anonymous · Answer

It would just be 0.25 correct? @mathmate

mathmate · Answer

Yep.  Rose is very hard to please! :)

anonymous · Answer

Haha awesome, thanks so much! :)

mathmate · Answer

You're welome!  :)