Results 21 to 30 of about 7,543,790 (273)

Two Populations Mean-Field Monomer–Dimer Model [PDF]

open access: yesJournal of Statistical Physics, 2018
A two populations mean-field monomer-dimer model including both hard-core and attractive interactions between dimers is considered. The pressure density in the thermodynamic limit is proved to satisfy a three-dimensional variational principle. A detailed analysis is made in the limit in which one population is much smaller than the other and a ...
Alberici, Diego, Mingione, Emanuele
openaire   +4 more sources

Ratio Estimators in Simple Random Sampling Using Information on Auxiliary Attribute [PDF]

open access: yes, 2008
Some ratio estimators for estimating the population mean of the variable under study, which make use of information regarding the population proportion possessing certain attribute, are proposed.
Chauhan, Pankaj   +3 more
core   +6 more sources

An Unbiased Estimator of Finite Population Mean Using Auxiliary Information

open access: yesJournal of Statistical Theory and Applications (JSTA), 2021
In this paper, an unbiased estimator is constructed by using a linear combination of an estimator of study variable and mean per unit estimator of an auxiliary variable under simple random sampling without replacement scheme.
B. Mahanty, G. Mishra
doaj   +1 more source

Persistence time of SIS infections in heterogeneous populations and networks [PDF]

open access: yes, 2017
For a susceptible-infectious-susceptible (SIS) infection model in a heterogeneous population, we present simple formulae giving the leading-order asymptotic (large population) behaviour of the mean persistence time, from an endemic state to extinction of
Clancy, Damian
core   +2 more sources

Application of Randomized Response Techniques Using Dichotomous Response for Mean Wage in Czechia and Slovakia [PDF]

open access: yesStatistika: Statistics and Economy Journal
Research of controversial topics (drug consumption, corruption) requires reliable estimates of population means of sensitive variables (spending on drugs, illegal sources of income). To avoid non-response and fabricated responses surveys using randomized
Ondřej Vozár, Luboš Marek
doaj   +1 more source

On the regression method of estimation of population mean from incomplete survey data through imputation [PDF]

open access: yes, 2005
When some observations in the sample data are missing, the application of the regression method is considered for the estimation of population mean with and without the use of imputation.
Shalabh, Toutenburg, Helge
core   +2 more sources

Predictive Estimation of Finite Population Mean Using Exponential Estimators [PDF]

open access: yesStatistika: Statistics and Economy Journal, 2014
This paper suggested the ratio-type and product-type exponential estimators of the population mean of a study variable through predictive approach using Bahl and Tuteja (1991) ratio-type and product-type exponential estimators as a predictor of the mean
Housila P. Singh   +2 more
doaj  

A Novel Family of Hybrid Neutrosophic Estimators for Population Mean Estimation [PDF]

open access: yesNeutrosophic Sets and Systems
This paper introduces a novel family of hybrid neutrosophic estimators for estimating the population mean when dealing with indeterminate data. Building upon neutrosophic statistics, we propose two innovative estimators that synergistically combine ratio-
Anisha Taneja, Sachin Malik
doaj   +1 more source

The Generalized Price Equation: Forces That Change Population Statistics

open access: yesFrontiers in Ecology and Evolution, 2020
The Price equation partitions the change in the expected value of a population measure. The first component describes the partial change caused by altered frequencies. The second component describes the partial change caused by altered measurements.
Steven A. Frank, William Godsoe
doaj   +1 more source

Population rate codes carried by mean, fluctuation and synchrony of neuronal firings

open access: yes, 2008
A population of firing neurons is expected to carry information not only by mean firing rate but also by fluctuation and synchrony among neurons. In order to examine this possibility, we have studied responses of neuronal ensembles to three kinds of ...
Amit   +63 more
core   +1 more source

Home - About - Disclaimer - Privacy