Measures of dispersion

Manikandan, S.

doi:10.4103/0976-500X.85931

Postgraduate CornerArchivesVol. 2 | Issue 4 | 2011 | pp. 315–316Open Access

Measures of dispersion

¹^*

¹Department of Pharmacology, Indira Gandhi Medical College and Research Institute Hospital, Kadirkamam, Pondicherry, India.

Correspondence: S. Manikandan
Department of Pharmacology, Indira Gandhi Medical College and Research Institute Hospital, Kadirkamam, Pondicherry, India.
Email: drsmanikandan001@gmail.com

Published: Jan 1, 2011

DOI: https://doi.org/10.4103/0976-500X.85931
Article URL: https://www.jpharmacol.com/article/j-pharmacol-pharmacother-2-4-315
PDF URL: https://www.jpharmacol.com/article/j-pharmacol-pharmacother-2-4-315.pdf

Abstract

The measures of central tendency are not adequate to describe data. Two data sets can have the same mean but they can be entirely different. Thus to describe data, one needs to know the extent of variability. This is given by the measures of dispersion. Range, interquartile range, and standard deviation are the three commonly used measures of dispersion.

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