Variability is how spread out or closely clustered a set of data is.
Variability may refer to:
Biology
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Genetic variability
Genetic variability is either the presence of, or the generation of, genetic differences.
It is defined as "the formation of individuals differing in genotype, or the presence of genotypically different individuals, in contrast to environmentally i ...
, a measure of the tendency of individual genotypes in a population to vary from one another
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Heart rate variability
Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat interval.
Other terms used include: "cycle length variability", "R–R variabi ...
, a physiological phenomenon where the time interval between heart beats varies
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Human variability
Human variability, or human variation, is the range of possible values for any characteristic, physical or mental, of human beings.
Frequently debated areas of variability include cognitive ability, personality, physical appearance (body shape ...
, the range of possible values for any measurable characteristic, physical or mental, of human beings
Other sciences
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Climate variability
Climate variability includes all the variations in the climate that last longer than individual weather events, whereas the term climate change only refers to those variations that persist for a longer period of time, typically decades or more ...
, changes in the components of Earth's climate system and their interactions
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Spatial variability
Spatial variability occurs when a quantity that is measured at different spatial locations exhibits values that differ across the locations. Spatial variability can be assessed using spatial descriptive statistics such as the range.
Let us supp ...
, when a quantity that is measured at different spatial locations exhibits values that differ across the locations
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Statistical variability
In statistics, dispersion (also called variability, scatter, or spread) is the extent to which a distribution is stretched or squeezed. Common examples of measures of statistical dispersion are the variance, standard deviation, and interquartile ...
, a measure of dispersion in statistics
See also
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Variability hypothesis
The variability hypothesis, also known as the greater male variability hypothesis, is the hypothesis that males generally display greater variability in traits than females do.
It has often been discussed in relation to human cognitive ability, w ...
, nineteenth century hypothesis that males have a greater range of ability than females
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Variable (disambiguation)
Variable may refer to:
* Variable (computer science), a symbolic name associated with a value and whose associated value may be changed
* Variable (mathematics), a symbol that represents a quantity in a mathematical expression, as used in many ...
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Variable renewable energy
Variable renewable energy (VRE) or intermittent renewable energy sources (IRES) are renewable energy sources that are not dispatchable due to their fluctuating nature, such as wind power and solar power, as opposed to controllable renewable ener ...
, a renewable energy source of a fluctuating nature
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Variance
In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its population mean or sample mean. Variance is a measure of dispersion, meaning it is a measure of how far a set of numbers ...
, a specific measure of statistical dispersion
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Variation (disambiguation)
Variation or Variations may refer to:
Science and mathematics
* Variation (astronomy), any perturbation of the mean motion or orbit of a planet or satellite, particularly of the moon
* Genetic variation, the difference in DNA among individuals ...
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