Ask
your own question, for FREE!
Mathematics
50 Online
If 40 students are asked to pick a number between 1 and 55, what is the probability at least two will choose the same number?
Still Need Help?
Join the QuestionCove community and study together with friends!
no. of ways that each people select a number = 55 no. of ways that each 40 people choose different number = 55P40 probability that each people choose different number = P(A) = 55P40 / 55^40 probability that at least two will choose the same = P'(A) = 1 - ( 55P40) / (55^40)
thanks that was correct
u 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
LightShadow:
I have a science test on rocks and minerals tommorow, and idk how to remember roc
willowjade:
had to write an essay on something that upset you so used something that just happened to me: any time I care about someone.
Cloud4444:
I love hearing your lies tell more I don't like u, I don't love u, I don't trust
gelphielvr:
(algebra 1) finding an x-value using x+y = a (question in the replies)
Yosad930:
quick question: why are most of the posts in the "open posts" unreplyable and old
breiadabrattzz:
One day I became the coal to his emotions I used to look at the waves from the oc
ShadowKid3:
I have a question about basic "rules" of art and want to know what tips or "rules" and such I can use to make my drawings better, thank you.
Strawberriesrgud7:
Second poem I post on here! Hope I did better than last time! -------------------
Graysonunderwoods:
"When children are young, they're told not to talk to strangers, and when they go
35 minutes ago
14 Replies
0 Medals
41 minutes ago
8 Replies
0 Medals
1 hour ago
8 Replies
0 Medals
6 hours ago
25 Replies
4 Medals
10 hours ago
3 Replies
3 Medals
8 hours ago
12 Replies
3 Medals
11 hours ago
5 Replies
0 Medals
8 hours ago
10 Replies
6 Medals
1 day ago
2 Replies
0 Medals