Bipolar mean and mean deviation about the bipolar mean for discrete quantitative variables - Walter Maffenini, Mariangela Zenga - Vita e Pensiero - Articolo Statistica & Applicazioni

Bipolar mean and mean deviation about the bipolar mean for discrete quantitative variables

digital Bipolar mean and mean deviation about the bipolar mean for discrete quantitative variables
Article
journal STATISTICA & APPLICAZIONI
issue STATISTICA & APPLICAZIONI - 2006 - 1
title Bipolar mean and mean deviation about the bipolar mean for discrete quantitative variables
Authors
Publisher Vita e Pensiero
format Article | Pdf
online since 06-2016
issn 1824-6672 (print) | 2283-6659 (digital)
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Recently, Maffenini and Zenga (2005) have introduced, for the ordinal variables, the bipolar mean that can be seen as a frequencies distribution. In this paper, the bipolar mean has been extended to the discrete variables. Moreover for these variables it has been introduced a new variability measure: the mean deviation about the bipolar mean. It has been shown that, for the discrete variables, the mean deviation about the bipolar mean is less or equal to the mean deviation about the arithmetic mean. A new interpretation of the mean deviations in terms of “unitary steps” has been given too. Finally, the mean deviation about the bipolar mean can be considered as a Gini’s dissimilarity index.

Authors biography

Walter Maffenini, Dipartimento di Metodi Quantitativi per le Scienze Economiche ed Aziendali - Università degli Studi di Milano-Bicocca - Piazza dell’Ateneo Nuovo 1, 20126 MILANO. (e-mail:walter.maffenini@unimib.it).
Mariangela Zenga, Dipartimento di Metodi Quantitativi per le Scienze Economiche ed Aziendali - Università degli Studi di Milano-Bicocca - Piazza dell’Ateneo Nuovo 1, 20126 MILANO. (e-mail:mariangela.zenga@unimib.it).

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