Probability of having at least one coupon out of N types
74451
What is the probability of rolling $n$ dice until each side appears at least once?
14390
Probability that $X \ge Y$ given N rolls on a d20
68162
Expected value of the conditional choice probability
39228
Distribution of number of Bernoulli trials to a given number of successes
12070
Probability that n points on a circle are in one semicircle
89611
Combinations of selecting $n$ objects with $k$ different types
96478
probability that a candidate comes with all $3$ pens having the same colour is $?$
132773
Odds of rolling doubles or triples given N 6-sided dice
99435
Proof of the inclusion-exclusion formula in probability
14002
What is the probability that throwing $m$ balls at random in $n$ urns at least one urn contains $c$ elements?
39287
Probability with same number of heads and tails
32422
What is the probability that there is at least one head and at least one tail?
104865
Probability in multiple choice exams
156678
How do you calculate probability of rolling all faces of a die after n number of rolls?
48558
How can I calculate the probability for multiple trials with different probabilities?
150662
Probability of the sum of three random variables being less than 1
57236
How many different combinations of a six sided die rolls equals n