Measures of Variability: Range, Interquartile Range, Variance, and Standard Deviation

A measure of variability is a summary statistic that represents the amount of dispersion in a dataset. How spread out are the values? While a measure of central tendency describes the typical value, measures of variability define how far away the data points tend to fall from the center. We talk about variability in the … Continue reading Measures of Variability: Range, Interquartile Range, Variance, and Standard Deviation