On sums of dependent random lifetimes under the Time Transformed Exponential model

Fuente: arXiv
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Autori principali: Navarro, Jorge, Pellerey, Franco, Mulero, Julio
Natura: Preprint
Pubblicazione: 2024
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author Navarro, Jorge
Pellerey, Franco
Mulero, Julio
author_facet Navarro, Jorge
Pellerey, Franco
Mulero, Julio
contents Considered a pair of random lifetimes whose dependence is described by a Time Transformed Exponential model, we provide analytical expressions for the distribution of their sum. These expressions are obtained by using a representation of the joint distribution in terms of multivariate distortions, which is an alternative approach to the classical copula representation. Since this approach allows to obtain conditional distributions and their inverses in simple form, then it is also shown how it can be used to predict the value of the sum from the value of one of the variables (or vice versa) by using quantile regression techniques.
format Preprint
id arxiv_https___arxiv_org_abs_2412_09151
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On sums of dependent random lifetimes under the Time Transformed Exponential model
Navarro, Jorge
Pellerey, Franco
Mulero, Julio
Statistics Theory
Considered a pair of random lifetimes whose dependence is described by a Time Transformed Exponential model, we provide analytical expressions for the distribution of their sum. These expressions are obtained by using a representation of the joint distribution in terms of multivariate distortions, which is an alternative approach to the classical copula representation. Since this approach allows to obtain conditional distributions and their inverses in simple form, then it is also shown how it can be used to predict the value of the sum from the value of one of the variables (or vice versa) by using quantile regression techniques.
title On sums of dependent random lifetimes under the Time Transformed Exponential model
topic Statistics Theory
url https://arxiv.org/abs/2412.09151