Ask
your own question, for FREE!
Mathematics
51 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
Yosad930:
okay another random question that even google itself isnt helping me with: why cant i zoom in and out anymore with the touchpad? yk how when you pinch your
AddieroniAndCheese:
Tips for studying for an AP exam in like a week? I barely know anything about chem T-T.
thereneelg:
Ok so. I need help. So for one of my songs in choir, The Power of Love. We have to hold one of the "Love"s for a long time.
Aniii:
What is the mean of the following set of numbers: 4, 8, 6, 5, 3? 5.0 5.2 6.0 7.0
gelphielvr:
(algebra 1) input data, revenue f(x) = initial amount(interest)^x question in the
Yosad930:
;-; exam is next tuesday, and i dont get a single thing (well maybe one or two) c
H1m:
What does tariffs mean and what are they exactly? I need an answer from someone that actually knows.
33 minutes ago
5 Replies
0 Medals
2 hours ago
3 Replies
1 Medal
34 minutes ago
12 Replies
1 Medal
11 hours ago
5 Replies
0 Medals
51 minutes ago
10 Replies
1 Medal
2 hours ago
15 Replies
0 Medals
10 hours ago
13 Replies
3 Medals