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    Wyświetlanie 1-4 z 4
    Tytuł:
    New polynomial exponential distribution: properties and applications
    Autorzy:
    Beghriche, Abdelfateh
    Zeghdoudi, Halim
    Raman, Vinoth
    Chouia, Sarra
    Powiązania:
    https://bibliotekanauki.pl/articles/2108330.pdf
    Data publikacji:
    2022-09-14
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    exponential distribution
    Xgamma distribution
    Lindley distribution
    quantile function stochastic ordering
    maximum-likelihood estimation
    XLindley distribution
    Opis:
    The study describes the general concept of the XLindley distribution. Forms of density and hazard rate functions are investigated. Moreover, precise formulations for several numerical properties of distributions are derived. Extreme order statistics are established using stochastic ordering, the moment method, the maximum likelihood estimation, entropies and the limiting distribution. We demonstrate the new family's adaptability by applying it to a variety of real-world datasets.
    Źródło:
    Statistics in Transition new series; 2022, 23, 3; 95-112
    1234-7655
    Pojawia się w:
    Statistics in Transition new series
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A New Quasi Sujatha Distribution
    Autorzy:
    Shanker, Rama
    Shukla, Kamlesh Kumar
    Powiązania:
    https://bibliotekanauki.pl/articles/1058938.pdf
    Data publikacji:
    2020-09-04
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    Sujatha distribution
    quasi Sujatha distribution
    moments
    reliability properties
    stochastic ordering
    stress-strength reliability
    estimation of parameters
    goodness of fit
    Opis:
    The aim of this paper is to introduce a new quasi Sujatha distribution (NQSD), of which the following are particular cases: the Sujatha distribution devised by Shanker (2016 a), the sizebiased Lindley distribution, and the exponential distribution. Its moments and momentsbased measures are derived and discussed. Statistical properties, including the hazard rate and mean residual life functions, stochastic ordering, mean deviations, Bonferroni and Lorenz curves and stress-strength reliability are also analysed. The method of moments and the method of maximum likelihood estimations is discussed for estimating parameters of the proposed distribution. A numerical example is presented to test its goodness of fit, which is then compared with other one-parameter and two-parameter lifetime distributions.
    Źródło:
    Statistics in Transition new series; 2020, 21, 3; 53-71
    1234-7655
    Pojawia się w:
    Statistics in Transition new series
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Two-Parameter Lindley Distribution
    Autorzy:
    Shanker, R.
    Mishra, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/465861.pdf
    Data publikacji:
    2013
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    Lindley distribution
    moments
    failure rate function
    mean residual life function
    stochastic ordering
    estimation of parameters
    goodness of fit
    Opis:
    A two-parameter Lindley distribution, of which the Lindley distribution (LD) is a particular case, has been introduced. Its moments, failure rate function, mean residual life function and stochastic orderings have been discussed. The maximum likelihood method and the method of moments have been discussed for estimating its parameters. The distribution has been fitted to some data-sets to test its goodness of fit.
    Źródło:
    Statistics in Transition new series; 2013, 14, 1; 45-56
    1234-7655
    Pojawia się w:
    Statistics in Transition new series
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling language extinction using Susceptible-Infectious-Removed (SIR) model
    Autorzy:
    Ikoba, N. A.
    Jolayemi, E. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1186921.pdf
    Data publikacji:
    2019-12-10
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    language extinction
    stochastic epidemic model
    non-homogeneous mixing
    quasi-stationary distribution
    time in which a language is expected to be extinct
    Opis:
    The study presents a stochastic epidemic model applied to the model of indigenous language extinction. The Susceptible-Infectious-Removed (SIR) categorization of an endemic disease has been reformulated to capture the dynamics of indigenous language decline, based on the assumption of non-homogeneous mixing. The time in which an indigenous language is expected to be extinct was derived using a modified SIR model with the population segmented into several sub-communities of small sizes representing family units. The data obtained from the 2016 indigenous language survey conducted in several parts of Nigeria and from the 2013 Nigeria Demographic Health Survey (NDHS) were used to estimate the key parameters of the model for Nigeria’s several indigenous languages. The parameters of interest included the basic reproduction number, the threshold of endemicity, and the time in which a language is expected to be extinct, starting from the endemic level. On the basis of the time in which a language is expected to be extinct, several of the surveyed languages appeared to be in a precarious condition, while others seemed virile, thanks to a high language transfer quotient within families.
    Źródło:
    Statistics in Transition new series; 2019, 20, 4; 71-87
    1234-7655
    Pojawia się w:
    Statistics in Transition new series
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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