How many average flips to get an equal amount of H and T
86397
throwing a $k$-sided dice until you get every face the same number of times
33639
In how many ways can $2n$ players be paired?
23246
Challenge question; How do I prove the expected value of the following?
100856
How do I simulate flip of biased coin?
89491
Is there a simple reason why the expected number of coin flips till getting $m$ more heads than tails or $n$ more tails than heads should be $mn$?
81167
How many ways can the average of n dice be a?
1050
Counting inversions in an array
75783
Alternate moves, first one to roll a 6 wins: what's the probability of winning?
137082
How many throws of a die until every possible result is obtained?
22454
How many combinations can I make?
67040
Confused about independent probabilities. If a fair coin is flipped 5 times, P(HHHHH) = 0.03125, but P(H | HHHH) = 0.5
10018
Tossing a fair coin until two consecutive tosses are the same
107964
Simple combinatorics problem.
126156
An instructor has an exam of 5 questions and a question bank of 50 questions. Are there $50\choose 5$ or $(50)_5$ possible exams?
135124
Calculating the expected payoff in a 2-finger morra game
144454
What is the probability of a coin landing tails 7 times in a row in a series of 150 coin flips?
61681
How to calculate the probability of rolling 6 at least 5 times in a row, out of 50 tries?