Results 1 to 10 of about 168,667 (308)

Upper-bound estimates for weighted sums satisfying Cramer’s condition

open access: yesLietuvos Matematikos Rinkinys, 2023
Let S = ω1S1 + ω2S2 + ⋯ + ωNSN. Here Sj is the sum of identically distributed random variables and ωj  > 0 denotes weight. We consider the case, when Sj  is the sum of independent random variables satisfying Cramer’s condition.
Vydas Čekanavičius, Aistė Elijio
doaj   +3 more sources

Comparing Distributions of Sums of Random Variables by Deficiency: Discrete Case

open access: yesMathematics, 2022
In the paper, we consider a new approach to the comparison of the distributions of sums of random variables. Unlike preceding works, for this purpose we use the notion of deficiency that is well known in mathematical statistics.
Vladimir E. Bening, Victor Y. Korolev
doaj   +1 more source

Computation of the Distribution of the Sum of Independent Negative Binomial Random Variables

open access: yesMathematical and Computational Applications, 2023
The distribution of the sum of negative binomial random variables has a special role in insurance mathematics, actuarial sciences, and ecology. Two methods to estimate this distribution have been published: a finite-sum exact expression and a series ...
Marc Girondot, Jon Barry
doaj   +1 more source

Nonuniform estimates in the approximation by the Poisson law

open access: yesLietuvos Matematikos Rinkinys, 2023
Poisson approximation for the sum of independent random variables is investigates in this paper.
Kazimieras Padvelskis
doaj   +3 more sources

Theoretical approach for uncertainty quantification in probabilistic safety assessment using sum of lognormal random variables

open access: yesNuclear Engineering and Technology, 2022
Probabilistic safety assessment is widely used to quantify the risks of nuclear power plants and their uncertainties. When the lognormal distribution describes the uncertainties of basic events, the uncertainty of the top event in a fault tree is ...
Gyun Seob Song, Man Cheol Kim
doaj   +1 more source

Entropies of Sums of Independent Gamma Random Variables

open access: yesJournal of Theoretical Probability, 2022
We establish several Schur-convexity type results under fixed variance for weighted sums of independent gamma random variables and obtain nonasymptotic bounds on their Rényi entropies. In particular, this pertains to the recent results by Bartczak-Nayar-Zwara as well as Bobkov-Naumov-Ulyanov, offering simple proofs of the former and extending the ...
Giorgos Chasapis   +2 more
openaire   +3 more sources

Efficient algorithms for calculating the probability distribution of the sum of hypergeometric-distributed random variables

open access: yesMethodsX, 2021
In probability theory and statistics, the probability distribution of the sum of two or more independent and identically distributed (i.i.d.) random variables is the convolution of their individual distributions.
Arne Johannssen   +2 more
doaj   +1 more source

Small deviations of sums of independent random variables [PDF]

open access: yesJournal of Combinatorial Theory, Series A, 2020
21 ...
openaire   +2 more sources

Lifetime Distributions and their Approximation in Reliability of Serial/Parallel Networks

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
In this paper we present limit theorems for lifetime distributions connected with network’s reliability as distributions of random variables(r.v.) min(Y1, Y2,..., YM) and max(Y1, Y2,..., YM ), where Y1, Y2,..., are independent, identically distributed ...
Leahu Alexei   +1 more
doaj   +1 more source

ON THE FLUCTUATIONS OF SUMS OF INDEPENDENT RANDOM VARIABLES [PDF]

open access: yesProceedings of the National Academy of Sciences, 1969
If X 1 , X 2 ,... are independent random variables with zero expectation and finite variances, the cumulative sums S n are, on the average, of the order of magnitude S
openaire   +3 more sources

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