Populationsmittelwerte
Populationsmittelwerte, also known as population means, represent the average value of a particular characteristic within an entire population. In statistical terms, a population refers to the complete set of individuals or items that are of interest for a study. The population mean is denoted by the Greek letter mu (µ). Calculating the true population mean requires data from every single member of the population, which is often impractical or impossible due to cost, time, or accessibility constraints.
When the entire population cannot be surveyed, statisticians often use a sample, which is a subset of