Cauchy distributions form a convolution semigroup, i.e. μt + s = μt * μs. This is because to hit a plane at distance t + s the Brownian motion has to hit a parallel plane at distance t first, and then ...

A higher-than-usual number of tips last year also led investigators with the auditor general's office to employees accused of stealing both time and property. In one case, an employee is accused ...