Question

Counting the number of permutations of a binary multiset that have >=1 partitions all ones?

score 168 · Answer 1 · 2016-03-26 07:11:53

168

Views

Counting the number of permutations of a binary multiset that have >=1 partitions all ones?

Published on 26 Mar 2016 - 7:11

score 2.7k · Answer 2 · 2016-03-26 16:30:26

2.7k

Views

Probability of drawing exactly two aces and two kings or one ace and three kings?

Published on 26 Mar 2016 - 16:30

score 1.1k · Answer 3 · 2016-03-28 07:50:34

1.1k

Views

A generalized version of inclusion exclusion principle using a binomial identity

Published on 28 Mar 2016 - 7:50

score 1.2k · Answer 4 · 2026-04-01 00:54:20

1.2k

Views

Combinatorial Proof of Derangement Identity $n!=\sum_{i=0}^n \binom{n}{n-i}D_i$

Published on 01 Apr 2026 - 0:54

score 454 · Answer 5 · 2016-03-30 00:32:13

454

Views

What Is the Probability of at Least $2$ Heads (Not Neccessarily Consecutive) Will Appear When a Coin is Flipped $9$ Times?

Published on 30 Mar 2016 - 0:32

score 5.5k · Answer 6 · 2016-03-30 02:43:09

5.5k

Views

What is the probability that a $5$ card poker hand has at least one pair?

Published on 30 Mar 2016 - 2:43

score 1.4k · Answer 7 · 2016-03-30 04:23:32

1.4k

Views

Inclusion-exclusion principle of professors liking $3$ different games

Published on 30 Mar 2016 - 4:23

score 5.4k · Answer 8 · 2016-03-30 04:44:12

5.4k

Views

How many ways are there to assign $20$ different people to $3$ different rooms with at least $1$ person in each room?

Published on 30 Mar 2016 - 4:44

score 1.1k · Answer 9 · 2026-04-02 07:55:19

1.1k

Views

Counting the number of rank $r$ binary $n \times k$ matrices that has unique columns

Published on 02 Apr 2026 - 7:55

score 6.7k · Answer 10 · 2016-04-03 12:03:38

6.7k

Views

In how many ways can the four walls of a room be painted with three colours so that no two adjacent walls have the same colour?

Published on 03 Apr 2016 - 12:03

score 33 · Answer 11 · 2016-04-03 12:36:49

33

Views

Calculate number of elements of $\mathcal{P}(\mathcal{P}(M))$ whose elements themselves are cover ing M

Published on 03 Apr 2016 - 12:36

score 1.5k · Answer 12 · 2016-04-05 20:17:21

1.5k

Views

Combinatorics - Number of ways to fill a 3x3 grid with 0's and 1's such that there is at least one zero in each column and row

Published on 05 Apr 2016 - 20:17

score 487 · Answer 13 · 2016-04-06 12:20:11

487

Views

combinatorics - why my reasoning is wrong?

Published on 06 Apr 2016 - 12:20

score 6k · Answer 14 · 2026-03-29 20:46:21

6k

Views

inclusion-exclusion principle - challenging problem

Published on 29 Mar 2026 - 20:46

score 188 · Answer 15 · 2026-03-29 20:45:38

188

Views

Textbook's reference - Euler Totient's function (proof/derivation by the use of inclusion-exclusion princple)

Published on 29 Mar 2026 - 20:45

List Question

Counting the number of permutations of a binary multiset that have >=1 partitions all ones?

Probability of drawing exactly two aces and two kings or one ace and three kings?

A generalized version of inclusion exclusion principle using a binomial identity

Combinatorial Proof of Derangement Identity $n!=\sum_{i=0}^n \binom{n}{n-i}D_i$

What Is the Probability of at Least $2$ Heads (Not Neccessarily Consecutive) Will Appear When a Coin is Flipped $9$ Times?

What is the probability that a $5$ card poker hand has at least one pair?

Inclusion-exclusion principle of professors liking $3$ different games

How many ways are there to assign $20$ different people to $3$ different rooms with at least $1$ person in each room?

Counting the number of rank $r$ binary $n \times k$ matrices that has unique columns

In how many ways can the four walls of a room be painted with three colours so that no two adjacent walls have the same colour?

Calculate number of elements of $\mathcal{P}(\mathcal{P}(M))$ whose elements themselves are cover ing M

Combinatorics - Number of ways to fill a 3x3 grid with 0's and 1's such that there is at least one zero in each column and row

combinatorics - why my reasoning is wrong?

inclusion-exclusion principle - challenging problem

Textbook's reference - Euler Totient's function (proof/derivation by the use of inclusion-exclusion princple)

Trending Questions

Popular # Hahtags

Popular Questions