Duplicate Question
The question on this page has been marked as a duplicate question.
Original Question
A box contains 55 balls numbered from 1 to 55. If 8 balls are drawn with replacement, what is the probability that at least two...Asked by Anonymous
A box contains 55 balls numbered from 1 to 55. If 15 balls are drawn with replacement, what is the probability that at least two of them have the same number?
Answers
Answered by
Reiny
take prob that they are both different
first can be anything, the second must be one of the other 54
prob that they are both different = (1)(54/55) = 54/55
prob( they are NOT both different)
= prob(at least two are the same) = 1 - 54/55 = 1/55
first can be anything, the second must be one of the other 54
prob that they are both different = (1)(54/55) = 54/55
prob( they are NOT both different)
= prob(at least two are the same) = 1 - 54/55 = 1/55
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.