ABSTRACT
The first thing to define is the term discrete random variable. A variable is considered to be random if each of its values is the result of a random observation. As stated at the beginning of the previous chapter, individual outcomes in an experiment cannot be predicted; thus, the result of an experimental observation can be a legitimate value of a random variable. If it is possible to make a list of all the values that a random variable can take, then this variable is called discrete.
