For questions about stochastic processes, for example random walks and Brownian motion.
A stochastic process is a collection of random variables representing the evolution of a system of random variables over time. A typical example is a markov-process.
A stochastic, or random, process describes the correlation or evolution of random events. It is used to model stock market fluctuations and electronic/audio-visual/biological signals. Among the most well-known stochastic processes are random walks and Brownian motion.
