Question

Neo randomly chooses a box and takes 4 pills out. Find the probability that he will get 4 red pills and 0 blue pills.

score 44 · Answer 1 · 2026-04-24 07:05:36

44

Views

Neo randomly chooses a box and takes 4 pills out. Find the probability that he will get 4 red pills and 0 blue pills.

Published on 24 Apr 2026 - 7:05

score 422 · Answer 2 · 2026-04-14 01:57:02

422

Views

how many ways are there to divide 180 items into 36 groups of 5?

Published on 14 Apr 2026 - 1:57

score 45 · Answer 3 · 2026-04-10 20:02:12

45

Views

Random dispersion down a delta-shaped pyramid and combinations of outcomes

Published on 10 Apr 2026 - 20:02

score 794 · Answer 4 · 2026-04-09 18:53:18

794

Views

Help understanding combinatorics problem involving restrictions on committees

Published on 09 Apr 2026 - 18:53

score 803 · Answer 5 · 2026-04-13 05:49:36

803

Views

Distributing distinct apples and pears to three people so that each person receives at least one pear

Published on 13 Apr 2026 - 5:49

score 364 · Answer 6 · 2026-04-14 08:01:28

364

Views

Is there any combinatorial argument to show the given result?

Published on 14 Apr 2026 - 8:01

score 476 · Answer 7 · 2026-04-17 07:43:13

476

Views

Distributing n labeled balls in m labeled boxes

Published on 17 Apr 2026 - 7:43

score 913 · Answer 8 · 2026-04-14 20:07:07

913

Views

Probability of forming a continuous loop of $2n$ pieces of string by tieing separated ends into $n$ pairs

Published on 14 Apr 2026 - 20:07

score 3.1k · Answer 9 · 2026-04-15 12:10:15

If no repetitions are allowed, how many 9-digit numbers can be formed from the digits 1, 2, 3, …, 9? How many of these are divisible by 4 ?

score 86 · Answer 10 · 2026-04-11 04:48:56

86

Views

How can I determine the probability of chained events in Combinations?

Published on 11 Apr 2026 - 4:48

score 269 · Answer 11 · 2026-05-14 05:30:06

269

Views

Is there a name for the set of "unique" combinations of the powerset of $2^n$ modulo permutation?

Published on 14 May 2026 - 5:30

score 2.3k · Answer 12 · 2026-04-11 23:46:14

2.3k

Views

Problem about eight different books randomly put on shelf.

Published on 11 Apr 2026 - 23:46

score 108 · Answer 13 · 2026-05-06 07:56:59

108

Views

Calculating large Bell number modulo a composite number

Published on 06 May 2026 - 7:56

score 408 · Answer 14 · 2026-04-15 18:36:04

408

Views

How to count the number of n-tuples $(x_1,x_2,...,x_n)$ that give a distinct sum?

Published on 15 Apr 2026 - 18:36

score 148 · Answer 15 · 2026-04-14 00:06:34

148

Views

Number of ways to pick $n$ balls of $k$ colors with a max of $m$ of each color

Published on 14 Apr 2026 - 0:06

List Question

Neo randomly chooses a box and takes 4 pills out. Find the probability that he will get 4 red pills and 0 blue pills.

how many ways are there to divide 180 items into 36 groups of 5?

Random dispersion down a delta-shaped pyramid and combinations of outcomes

Help understanding combinatorics problem involving restrictions on committees

Distributing distinct apples and pears to three people so that each person receives at least one pear

Is there any combinatorial argument to show the given result?

Distributing n labeled balls in m labeled boxes

Probability of forming a continuous loop of $2n$ pieces of string by tieing separated ends into $n$ pairs

If no repetitions are allowed, how many 9-digit numbers can be formed from the digits 1, 2, 3, …, 9? How many of these are divisible by 4 ?

How can I determine the probability of chained events in Combinations?

Is there a name for the set of "unique" combinations of the powerset of $2^n$ modulo permutation?

Problem about eight different books randomly put on shelf.

Calculating large Bell number modulo a composite number

How to count the number of n-tuples $(x_1,x_2,...,x_n)$ that give a distinct sum?

Number of ways to pick $n$ balls of $k$ colors with a max of $m$ of each color

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