What is a population parameter?
Population parameter is a term used in statistics. It refers to a measurement of a population that is being studied. The parameter is a number that is used by scientists to describe a specific population or group.PopulationsA population is any group of people or objects that a researcher wants to measure. Examples of populations are people in the United States, or trees in a forest.UnitA population parameter must also have a unit that is being measured. For people in the United States, possible units that could be measured include number, height and eye color.Population SizePopulation parameters can refer to very large or very small populations. Small populations can be measured directly, but when researchers study large populations, they often take samples to represent the entire population.StatisticsStatistics is a branch of mathematics that allows researchers to make guesses about population parameters based on data gathered from random samples of a population.