Description
Returns the name of one of the parameters of a specified probability distribution.
Syntax
=MM_PARAMNAME("DistName", ParamNumber)"Distname"
String. Name of the probability distribution.ParamNumber
Index of the distribution parameter whose name you wish to return. The value must be an integer from 1 to the total number of parameters for the specified distribution. Maximum is 3.
Example

Formula in B3: =MM_PARAMNAME($A3,B$2) returns the name of the first (and only) parameter of the Bernoulli distribution.
The above formula is copied from cell B3 to D25. The table gives the list of parameters for all supported probability distributions.