Μελέτη του μέσου υπολειπόμενου χρόνου ζωής για το προσθετικό και το αναλογικό μοντέλο κινδύνων
On the mean residual lifetime for the additive and the proportional hazard rate models

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Keywords
Προσθετικό μοντέλο κινδύνων ; Αναλογικό μοντέλο κινδύνων ; Μέσος υπολειπόμενος χρόνος ζωής ; Ένταση κινδύνουAbstract
This diploma thesis deals with the additive and proportional risk models in order to show the direct effect of changing the function of risk intensity to that of the average residual lifetime and vice versa.
The first chapter presents basic concepts that are necessary for subsequent analysis as well as theorems that aim to better understand mathematical concepts through examples.
The second chapter introduces the concept of the additive risk model where the monotony and inflection points of the risk intensity function and the average residual lifetime are studied through various examples, known and specific distributions and as well as graphs.
In the third chapter, the proportional risk model is analyzed, presenting the monotony and the turning points of the risk intensity and average residual lifetime functions and how these interact with each other through examples and known distributions by representing the graphics.
Finally we summarize the conclusions we have drawn from the whole of the study has been made.