The Population Mean is a statistical measure that represents the average value of a set of data points within a specific group, known as a population. It is calculated by adding all the values in the population and then dividing by the total number of values. This measure provides a central point that summarizes the data. In research and statistics, the population mean is crucial for understanding trends and making comparisons. It helps researchers draw conclusions about the entire population based on a sample. The symbol for the population mean is often represented by the Greek letter mu (μ).