Related Terms. A Rapid Application Development (RAD) system developed by Borland International, Inc. Delphi is similar to Visual Basic from Microsoft, but whereas Visual Basic is based on the BASIC programming language, Delphi is based on Pascal.
A parameter is a numerical value that states something about the entire population being studied. For example, we may want to know the mean wingspan of the American bald eagle. This is a parameter because it is describing all of the population. Parameters are difficult if not impossible to obtain exactly.
What is the difference between a parameter and a statistic? A parameter is a numerical measurement describing data from a population. A statistic is a numerical measurement describing data from a sample. For a set population, does a parameter ever change? never If there are three different samples of the same size from a set population, is it possible to get three different values for the same statistic?