<P> In these above examples, the distributions of the random variables are completely specified by the type of distribution, i.e. Poisson or normal, and the parameter values, i.e. mean and variance . In such a case, we have a parameterized distribution . </P> <P> It is possible to use the sequence of moments (mean, mean square, ...) or cumulants (mean, variance, ...) as parameters for a probability distribution: see Statistical parameter . </P> <P> In computing, a parameter is defined as "a reference or value that is passed to a function, procedure, subroutine, command, or program". For example, the name of a file, (a parameter), is passed to a computer program, which then performs a specific function; that is, a program may be passed the name of a file on which it will perform the specific function . </P> <P> In computer programming, two notions of parameter are commonly used, and are referred to as parameters and arguments--or more formally as a formal parameter and an actual parameter . </P>

What is a music parameter name and describe the three categories of parameters