ACTL10001 Chapter Notes - Chapter 3: Population Pyramid, Logistic Function, Birth Rate
Document Summary
Data collected from actual populations are used to construct models describing the survival experience of populations of a certain type and estimate the experience of other comparable populations or individuals within them. The object of classification is to divide the population into sub-groups which are homogeneous in some respect. The major classifications are by year of age and by sex. Statistics that describe the state of a population: Sex ratio = 100 x no. of males / no. of females. More than 100 for all countries in the world. Child-woman ratio = 100 x no. of children aged 0-4 / no. of females aged 15-49. Dependency ratio = 100 x (no. of people aged 0-14 + no. of people aged 65+) / no. of people aged. Youth dependency ratio = 100 x no. of people aged 0-14 / no. of people aged 15-64. Age dependency ratio = 100 x no. of people aged 65+ / no. of people aged 15-64.