Ask
your own question, for FREE!
Mathematics
14 Online
OpenStudy (anonymous):
A woman is expecting triplets. What is the probability that there are 2 girls and 1 boy? What is the probability that all 3 babies are girls?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
25% because there are 4 possibilities
OpenStudy (anonymous):
@abracadabra would you mind doing it out?
OpenStudy (anonymous):
3g0b 2g1b 1g2b 0g3b those are all the possibilities, so one of those is 25%
OpenStudy (anonymous):
g=girl b=boy get it?
OpenStudy (anonymous):
yes, we are supposed to be doing this with the binomial probability P(r) = nCr p^r q^n-r
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
sorry, i have no idea how to do it that way...
OpenStudy (anonymous):
its okay haha thanks for helping anyway!
OpenStudy (anonymous):
your welcome :)
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
DoltonCarlee:
So like do y'all know anything about the first world war?
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
6 hours ago
8 Replies
1 Medal
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
1 day ago
6 Replies
1 Medal
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
2 days ago
0 Replies
0 Medals
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
2 days ago
2 Replies
1 Medal
DoltonCarlee:
So like do y'all know anything about the first world war?
1 day ago
2 Replies
0 Medals
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
1 day ago
5 Replies
2 Medals
