Concept
Binomial distribution
2 essays name this object, across one field. What follows is each of them, and the objects they name alongside it.
Also named here as normal distribution — the same set of essays touches all of them, so they are one junction rather than several.
A bell curve assembled out of coin flips
Drop six hundred balls through a board of pegs, each bouncing left or right at random, and they pile up in a shape that can be predicted precisely. Nothing coordinated them.
A walk that always comes home, until it does not
Step left or right at random, forever, and the walk returns to where it started with certainty. On a grid it also returns. In space it does not, and about a third of walks leave and never come back.
Named alongside it
The objects these essays reach for when they reach for this one.
ConvergenceIndependenceLimitNormal distributionDiffusionGalton boardHeavy tailsParityPiRandom walkRecurrenceTransience