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	Dependency Ratio	Analiza tablice preživljavanja
Oblast	Demografija	Demografija
Porodica	Process / pipeline	Survival analysis
Godina nastanka	1956	1984
Tvorac	Standard demographic practice (United Nations / national statistical offices)	Demographic/actuarial tradition; Chiang
Tip	Ratio summarizing the age structure of economic dependency	Age-structured mortality estimator
Temeljni izvor	Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512	Chiang, C. L. (1984). The Life Table and Its Applications. Robert E. Krieger Publishing. ISBN: 978-0-89874-565-2
Drugi nazivi	Age dependency ratio, Youth and old-age dependency ratio, Total dependency ratio, Bağımlılık Oranı	Mortality Table, Actuarial Table, Survival Table, Yaşam Tablosu
Srodne	4	3
Sažetak	The age dependency ratio is a simple summary measure of a population's age structure that expresses the number of people in 'dependent' age groups — children and the elderly — relative to those of working age, conventionally per 100 working-age persons. It is split into a youth dependency ratio and an old-age dependency ratio, and it is among the most widely used demographic indicators of the potential economic burden an age structure places on its productive population.	A life table is a systematic, age-structured summary of the mortality experience of a population. It traces a hypothetical cohort of births — conventionally 100,000 — through successive age intervals, recording how many survive, how many die, and how many person-years are lived at each interval. The method was formalized in its modern probabilistic form by Chiang (1984), synthesizing centuries of actuarial and demographic practice into a rigorous statistical framework applicable to human and biological populations alike.