Common notation for variables are upper-case Latin letters X,Y,Z,... Common notation for a specific value from the domain (set of all possible values of a variable) are lower-case Latin letters ...Common notation for variables are upper-case Latin letters X,Y,Z,... Common notation for a specific value from the domain (set of all possible values of a variable) are lower-case Latin letters x,y,z,.... For example, if X is the number of children in a family, then x represents a specific integer 0, 1, 2, 3, .... Variables in statistics differ from variables in intermediate algebra in the two following ways. (1) The domain of the random variable (RV) is not necessarily a nu…
