About
Population parameter must not be confound with a Statistical Parameter
In statistics, all actual numbers about a population are called a parameter. They are never exactly known and are estimated through a statistic as it deals with a sample.
A statistician would not say that the parameter is a specific number, but would most likely report something like the following: “I am fairly confident that the true number is actually between … and ….”
A parameter is:
- a statistical measure or number that summarizes the entire population.
- a numerical measure that describes a characteristic of a population
A parameter describes the population whereas a statistic describes a sample