Variability

The term variability, "the state or characteristic of being variable", describes how spread out or closely clustered a set of data is. This may be applied to many different subjects:

Climate variability
Genetic variability, a measure of the tendency of individual genotypes in a population to vary from one another
Heart rate variability, a physiological phenomenon where the time interval between heart beats varies
Human variability, the range of possible values for any measurable characteristic, physical or mental, of human beings
Spatial variability, when a quantity that is measured at different spatial locations exhibits values that differ across the locations
Statistical variability

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