Ask
your own question, for FREE!
Mathematics
27 Online
OpenStudy (anonymous):
Help with probability
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
The number of courses X taken in one term by students at a large university has the probability distribution shown below ,where k is some constant: X. 1 2 3 4 5 6 P(X=x) 0.05 k 0.21 3k 0.32 2k What is the probability that a randomly selected student is taking at least 3 courses in one term?
OpenStudy (anonymous):
Can you guys help?
OpenStudy (anonymous):
what do u think?
OpenStudy (anonymous):
I got k is 0.07
OpenStudy (anonymous):
Okk, at least 3 courses means 3 or 4 or 5 or 6 courses
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
I got it thanks so much
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
kippppp:
does anyone have any good tips for writing stories? i'm trying to write a dnd campaign but i'm not that great of a writer yet.
GRIZZLEY19:
Y'all let me know what y'all think about this beat I made I took me like a hour maybe rate it 0/10 https://drive.
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
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
kippppp:
does anyone have any good tips for writing stories? i'm trying to write a dnd campaign but i'm not that great of a writer yet.
5 minutes ago
2 Replies
0 Medals
GRIZZLEY19:
Y'all let me know what y'all think about this beat I made I took me like a hour maybe rate it 0/10 https://drive.
12 hours ago
0 Replies
0 Medals
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
2 hours ago
13 Replies
4 Medals
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
6 seconds ago
3 Replies
0 Medals
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
1 day ago
10 Replies
0 Medals
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
3 hours ago
6 Replies
1 Medal
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
1 day ago
10 Replies
2 Medals
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
3 days ago
6 Replies
1 Medal
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
4 days ago
0 Replies
0 Medals
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
4 days ago
2 Replies
1 Medal