Define Stochastic System?

• Stochastic means pertaining to chance.
• Stochastic system means anything random that involves in time.
• Stochastic system is an area of system theory that deals with dynamics as well as statistic systems, which can be characterized by stochastic process called random process.
• By random process we mean that index family of random variables.simply we can say that random process is the collection of random variables.
• Random variables are those whose possible values are numerical outcomes of a random phenomenon • Which can take on a set of possible different values (similarly to other mathematical variables), each with an associated probability