Chapter 4: Random Variable
Chapter 4: Random Variable Definition: A function whose domain is the set of possible outcomes, and whose range is a subset of the set of reals. Such a function is called a random variable. A real number X connected with the outcome of a random experiment E. For example, if E consisits of two tosses the random variable which is the number of heads (0, 1 or 2). Outcome: HH HT TH TT Value of X 2 1 1 0 Ø Let S be the sample space associate with a given random experiment. A real- valued function defined on S and taking values in R is called ...