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Measuring the variability of data from other values in the set
Author(s) -
Jones Dustin L.,
Scariano Stephen M.
Publication year - 2014
Publication title -
teaching statistics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.425
H-Index - 13
eISSN - 1467-9639
pISSN - 0141-982X
DOI - 10.1111/test.12056
Subject(s) - measure (data warehouse) , variance (accounting) , set (abstract data type) , meaning (existential) , data set , statistics , mathematics , population , econometrics , computer science , data mining , epistemology , demography , accounting , sociology , business , philosophy , programming language
Summary Students have intuitive notions of the meaning of variability; some may see variability as how values in a set vary from each other. This article provides a measure of variability that is based on that conception. We introduce this new measure and a method for calculating it. Finally, we prove that this measure is equivalent to the population variance.