In a set of 10 billion possible items, if I have X items what is the probability of two being the same?
32170
Birthday Problem: How am I wrong?
119231
Number of Atoms in a Probability Space
150281
Am I on the right track to figure out this combinatorics problem?
33572
Does anyone know what this probability question is asking?
135696
Probability of an even number of sixes
65197
Probability of Various Combinations of Weather
48558
How can I calculate the probability for multiple trials with different probabilities?
154057
Probability Math Question...?
94836
Total combinations from number of unique combination?
22929
Two squares are chosen at random on a chessboard. What is the probability that they have a side in common?
102329
How can I calculate the probability of a condition concerning ranked values from the same distribution?
142817
Probability of people attending same and different places
53467
Probability of the union of $3$ events?
97254
What is the proof of permutations of similar objects?
95751
Probability: 10th ball is blue
53631
Probability question (Birthday problem)
78327
You have to draw 10 cards. What is the probability you will not drawn any repeated cards?