100 tickets numbered 1,2,3...,100, are sold to 100 different people for a drawing...
134599
How do I do Combinatorics / Counting?
56893
More than 1000 gallons of paint is/are sold each day
113600
Percentage of 2 different Sets of Birthday Out of 14 People
107964
Simple combinatorics problem.
35226
No simple group of order $1,000,000$
76369
Retrieving the top 100 numbers from one hundred million of numbers
153218
If $m$ tickets are drawn out of $n$ tickets numbered $1$ to $n$, find variance of the sum of the numbers on tickets
85248
A little fun with tournaments (graphs).
29713
$k$ times's draw from $n$ numbers with replacement, each number at least appear once
95196
No simple group of order $300$
113447
4 cards are drawn from a pack without replacement. What is the probability of getting all 4 from different suits?
41920
What is the probability that $m$ is the largest number drawn?
94828
Why is the bonus 100 points set for 200 points in a single site and not set to a combination of sites?
84917
Four balls with different colors in a box, how many times do I need to pick to see all four colors?
1381
Random coin toss; toss 10 coins; repeat 100 times
146720
Expected number I will be on after drawing cards until I get an ace, 2, 3, and so forth
158045
expected number of cards drawn exactly once (with replacement)