Question

Probability of $5$ persons getting their exact car key

score 100 · Answer 1 · 2023-02-18 03:31:45

100

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Probability of $5$ persons getting their exact car key

Published on 18 Feb 2023 - 3:31

score 147 · Answer 2 · 2023-02-24 14:33:26

147

Views

The number of partial derangements of a $52$-card deck (ignoring suits)

Published on 24 Feb 2023 - 14:33

score 19 · Answer 3 · 2023-03-15 18:00:05

19

Views

Arrangement of element such that no two share the same position nor the same order

Published on 15 Mar 2023 - 18:00

score 96 · Answer 4 · 2023-03-18 00:06:27

96

Views

Integral problem involving derangements and improper integrals

Published on 18 Mar 2023 - 0:06

score 42 · Answer 5 · 2023-04-07 13:31:22

42

Views

Counting number of derangements with extra numbers without an index

Published on 07 Apr 2023 - 13:31

score 18 · Answer 6 · 2023-04-12 16:37:33

18

Views

Statistic test for assessing how close is a set of permutations to all being sorted

Published on 12 Apr 2023 - 16:37

score 87 · Answer 7 · 2023-04-23 21:09:56

87

Views

How to use Lagrange inversion to count derangements?

Published on 23 Apr 2023 - 21:09

score 51 · Answer 8 · 2023-05-03 14:38:28

51

Views

Derangement after derangement

Published on 03 May 2023 - 14:38

score 110 · Answer 9 · 2023-05-11 18:47:47

I want to find the number of permutations of the set $\{1,2,3,4,5,6\}$ if not one element is in that position as in the original input $1 2 3 4 5 6$.

score 87 · Answer 10 · 2023-05-24 20:15:40

87

Views

how many unique numbers will appear in simulation?

Published on 24 May 2023 - 20:15

score 90 · Answer 11 · 2023-05-25 00:50:44

90

Views

Why doesn’t this solution to the hat matching problem work?

Published on 25 May 2023 - 0:50

score 40 · Answer 12 · 2023-06-01 10:24:22

40

Views

Can't understand how did it go from $(\frac{D_{N-x}}{(N-x)!} - {e^{-1}}) \frac{1}{x!}$ to $(\frac{D_{x}}{x!} - {e^{-1}}) \frac{1}{N-x!}$

Published on 01 Jun 2023 - 10:24

score 57 · Answer 13 · 2023-06-03 07:11:30

57

Views

What is the conceptual misunderstanding in the hat-check problem (derangements)?

Published on 03 Jun 2023 - 7:11

score 33 · Answer 14 · 2023-06-15 16:19:41

33

Views

How to find the recurrence sequence of the generalized Derangement?

Published on 15 Jun 2023 - 16:19

score 36 · Answer 15 · 2023-06-20 11:34:11

36

Views

Find the general term for the sequence of no. of permutations of derangements of length n where adjacent to an element it was originally adjacent to.

Published on 20 Jun 2023 - 11:34

List Question

Probability of $5$ persons getting their exact car key

The number of partial derangements of a $52$-card deck (ignoring suits)

Arrangement of element such that no two share the same position nor the same order

Integral problem involving derangements and improper integrals

Counting number of derangements with extra numbers without an index

Statistic test for assessing how close is a set of permutations to all being sorted

How to use Lagrange inversion to count derangements?

Derangement after derangement

I want to find the number of permutations of the set $\{1,2,3,4,5,6\}$ if not one element is in that position as in the original input $1 2 3 4 5 6$.

how many unique numbers will appear in simulation?

Why doesn’t this solution to the hat matching problem work?

Can't understand how did it go from $(\frac{D_{N-x}}{(N-x)!} - {e^{-1}}) \frac{1}{x!}$ to $(\frac{D_{x}}{x!} - {e^{-1}}) \frac{1}{N-x!}$

What is the conceptual misunderstanding in the hat-check problem (derangements)?

How to find the recurrence sequence of the generalized Derangement?

Find the general term for the sequence of no. of permutations of derangements of length n where adjacent to an element it was originally adjacent to.

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