Question

What is the probability that some people are chosen in different groups?

score 186 · Answer 1 · 2018-02-16 19:49:04

186

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What is the probability that some people are chosen in different groups?

Published on 16 Feb 2018 - 19:49

score 185 · Answer 2 · 2026-03-22 07:18:56

185

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Intersection of $n$ circles and $m$ lines

Published on 22 Mar 2026 - 7:18

score 1.2k · Answer 3 · 2018-02-17 09:53:45

1.2k

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How many strings of $6$ digits are there which use only the digits $0, 1$, or $2$ and in which $2$, whenever it appears, always does so after $1$?

Published on 17 Feb 2018 - 9:53

score 6.7k · Answer 4 · 2018-02-17 16:47:48

6.7k

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How many $7$-digit numbers are there with non-repeating digits?

Published on 17 Feb 2018 - 16:47

score 193 · Answer 5 · 2018-02-18 03:57:01

193

Views

Combinatorics Basics

Published on 18 Feb 2018 - 3:57

score 175 · Answer 6 · 2018-02-18 09:36:02

175

Views

find amount all the 3-digit numbers

Published on 18 Feb 2018 - 9:36

score 104 · Answer 7 · 2018-02-19 16:40:20

104

Views

Probability that at least a certain number of people is chosen

Published on 19 Feb 2018 - 16:40

score 54 · Answer 8 · 2018-02-19 17:09:30

54

Views

Permutations/Combinations where only certain elements can be re-ordered with certain other elements

Published on 19 Feb 2018 - 17:09

score 117 · Answer 9 · 2018-02-20 14:42:02

117

Views

Probability that people are chosen in different groups?

Published on 20 Feb 2018 - 14:42

score 872 · Answer 10 · 2026-03-20 01:49:43

872

Views

Queues and permutation/combination

Published on 20 Mar 2026 - 1:49

score 362 · Answer 11 · 2018-02-20 21:24:42

362

Views

Arranging a packet of skittles with repetitions of flavor

Published on 20 Feb 2018 - 21:24

score 429 · Answer 12 · 2026-03-24 23:43:22

429

Views

Prove a formula with Fibonacci sum

Published on 24 Mar 2026 - 23:43

score 59 · Answer 13 · 2018-02-21 13:45:39

There are 10 people playing basketball. We want to divide them into two teams of 5. However, Dan and Mike want to be on the same team.

score 212 · Answer 14 · 2018-02-22 09:20:23

212

Views

Probability of having l balls in the same box given N identical balls and n boxes.

Published on 22 Feb 2018 - 9:20

score 121 · Answer 15 · 2018-02-22 09:21:23

121

Views

what if binary had three states like {0,1,2} instead if {0,1} then how many possible combinations we could have?

Published on 22 Feb 2018 - 9:21

List Question

What is the probability that some people are chosen in different groups?

Intersection of $n$ circles and $m$ lines

How many strings of $6$ digits are there which use only the digits $0, 1$, or $2$ and in which $2$, whenever it appears, always does so after $1$?

How many $7$-digit numbers are there with non-repeating digits?

Combinatorics Basics

find amount all the 3-digit numbers

Probability that at least a certain number of people is chosen

Permutations/Combinations where only certain elements can be re-ordered with certain other elements

Probability that people are chosen in different groups?

Queues and permutation/combination

Arranging a packet of skittles with repetitions of flavor

Prove a formula with Fibonacci sum

There are 10 people playing basketball. We want to divide them into two teams of 5. However, Dan and Mike want to be on the same team.

Probability of having l balls in the same box given N identical balls and n boxes.

what if binary had three states like {0,1,2} instead if {0,1} then how many possible combinations we could have?

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