All Questions
3
questions
5
votes
1
answer
105
views
Math of Jury Sizes
If we go by the assumption that a Jury is a representation of the public at large, then is 12 people statistically signficant?
When doing any scientific survey or poll, a sample of 12 people would be ...
2
votes
2
answers
67
views
Correctly labelling people in a lineup
I've been watching video's like this* where someone is asked to label a group of people. All people in a line have a label that is distinct from all the others in the line. The labeller receives $n$ ...
9
votes
4
answers
1k
views
An unexpected application of non-trivial combinatorics
PROBLEM STATEMENT
Given two finite sets $A$ and $B$, each containing $s \in \mathbb N$ elements, how many pairs of functions $f \colon A \rightarrow B$ and $g \colon B \rightarrow A$ are there, ...