Why is the range considered a simple measure of dispersion?

The range is considered a simple measure of dispersion primarily because it requires minimal calculation. To determine the range, you only need to identify the highest and lowest values in a data set and subtract the smallest value from the largest. This straightforward calculation makes the range easily computable and accessible, even for those who may not have extensive statistical training.

While the range does not provide detailed information about the distribution of the data, such as the presence of outliers or how data points are spread within the high and low values, its simplicity is one of its key features. This straightforwardness allows for quick assessments of variability in a data set, making it a useful initial measure when exploring data.