Probability Fact

Queueing theory: The science of waiting in line

The math behind how people wait in line

When is correlation transitive?

Given two unit vectors $latex {v,w}&fg=000000$ in a real inner product space, one can define the correlation between these vectors to be their inner product $latex {\langle v, w \rangle}&fg…

Simulating Identification by Zip Code, Gender, & Birthdate

A widely cited result says that 87% of Americans can be uniquely identified by their zip code, sex & birth date. We do a simulation to show this is plausible.

Cornish–Fisher expansion - Wikipedia

Weighting an average to minimize variance

How would you allocate money to a set of independent assets with to minimize volatility if some assets are more volatile than others?

Bertrand's ballot theorem - Wikipedia

Computing normal probabilities with a simple calculator

A simple approximation to the normal CDF for a calculator with basic functions and an exp key.

Explaining probability to a jury | Expert witness

A panel of jurors is unlikely to contain many people who understand probability, but understanding probability may be critical to a fair trial.

Uniformity increases entropy

Entropy increases as system states become more uniform and decreases as they become further from uniform.