If you select 20 people at random. What is the probability that at least one pair of people share the same birthday?
71222
probability question ("birthday paradox")
34155
Probability Problem with $n$ keys
10005
Probability that two people see each other at the coffee shop
139699
Probability of a Coin Toss
158179
Birthday problem: why is this solution wrong?
76712
In a tennis tournement of 128 players, elimination system, what is the probability that two twins will meet at some point?
110856
Number of ways to select $K$ people from $N$ people such that at least $r$ people are there in between them
58641
Arguments for/against same birthday for siblings?
107964
Simple combinatorics problem.
109657
Probability question of hats
156080
changing probability of getting a random number
26115
Probability of Birthdays
85213
Problem with random permutation and conditional probability
143612
If three dice are rolled, what is the probability that all three are the same number?
142817
Probability of people attending same and different places
118407
Birthday Problem applied to collisions
24184
Probabilty of having exactly one sibling