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Dispersion vs Overdispersion - What's the difference?

dispersion | overdispersion |

As nouns the difference between dispersion and overdispersion

is that dispersion is dispersion, dispersal while overdispersion is (statistics) the presence of greater dispersion in a data set than would be expected according to the statistical model in use.

dispersion

English

Noun

(en noun)
  • The state of being dispersed; dispersedness.
  • A process of dispersing.
  • The degree of scatter of data.
  • (optics) The separation of visible light by refraction or diffraction.
  • (medicine) The removal of inflammation.

    • Related terms

    * dispersivity

    References

    * Chambers's Etymological Dictionary , 1896, p. 131

    overdispersion

    English

    Noun

    (wikipedia overdispersion) (en noun)
  • (statistics) The presence of greater dispersion in a data set than would be expected according to the statistical model in use.