On the non-existence of a discrete power series distribution with a constant coefficient of variation

Non-existence of distributions with constant coefficient of variation(CV) is investigated within the discrete Power Series and Modified Power Series families of distributions. The development is used to revisit and comment on the problem of existence of a better but biased estimator.

Bibliographic Details
Main Authors: Rahul Bhattacharya, Taranga Mukherjee
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:Examples and Counterexamples
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666657X2300006X
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author Rahul Bhattacharya
Taranga Mukherjee
author_facet Rahul Bhattacharya
Taranga Mukherjee
author_sort Rahul Bhattacharya
collection DOAJ
description Non-existence of distributions with constant coefficient of variation(CV) is investigated within the discrete Power Series and Modified Power Series families of distributions. The development is used to revisit and comment on the problem of existence of a better but biased estimator.
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spelling doaj.art-e923468962d042fb90266e5c92fe7edf2023-06-24T05:19:35ZengElsevierExamples and Counterexamples2666-657X2023-11-013100104On the non-existence of a discrete power series distribution with a constant coefficient of variationRahul Bhattacharya0Taranga Mukherjee1Department of Statistics, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, India; Corresponding author.Department of Applied Sciences, Maulana Abul Kalam Azad University of Technology, West Bengal, IndiaNon-existence of distributions with constant coefficient of variation(CV) is investigated within the discrete Power Series and Modified Power Series families of distributions. The development is used to revisit and comment on the problem of existence of a better but biased estimator.http://www.sciencedirect.com/science/article/pii/S2666657X2300006XBiased estimatorMean square errorPower series distribution
spellingShingle Rahul Bhattacharya
Taranga Mukherjee
On the non-existence of a discrete power series distribution with a constant coefficient of variation
Examples and Counterexamples
Biased estimator
Mean square error
Power series distribution
title On the non-existence of a discrete power series distribution with a constant coefficient of variation
title_full On the non-existence of a discrete power series distribution with a constant coefficient of variation
title_fullStr On the non-existence of a discrete power series distribution with a constant coefficient of variation
title_full_unstemmed On the non-existence of a discrete power series distribution with a constant coefficient of variation
title_short On the non-existence of a discrete power series distribution with a constant coefficient of variation
title_sort on the non existence of a discrete power series distribution with a constant coefficient of variation
topic Biased estimator
Mean square error
Power series distribution
url http://www.sciencedirect.com/science/article/pii/S2666657X2300006X
work_keys_str_mv AT rahulbhattacharya onthenonexistenceofadiscretepowerseriesdistributionwithaconstantcoefficientofvariation
AT tarangamukherjee onthenonexistenceofadiscretepowerseriesdistributionwithaconstantcoefficientofvariation