Question

Demography is the study of statistics that affects
A. Population growth
B. Geography
C. Family pedigrees
D. Local concentrations of individuals

Answer 1

The demography is affected by various parameters such as mortality, natality, emigration, immigration, etc. It measures the characteristics of a population of a particular geographic area.

Complete answer:
Demography is the study of statistics that have an effect on population increase. It includes the study of parameters like size, structure, and distributions of various populations and also other parameters such as birth, migration, ageing, and death. Demographic statistics unit measures the characteristics of a population. Records of births, deaths, marriages, immigration and migration and an everyday census of population offer data that are key to creating sound selections regarding national policy. A helpful outline of such data is depicted by the population pyramid. It provides knowledge regarding the sex and age distribution of the population in an accessible graphical format. Another outline is named the life table. For a cohort of persons born within the same year, it traces their life experiences from birth to death. For a given cohort, the proportion expected to survive annually (or decade in AN shortened life table) is given in tabular or graphical kind. The magnitude relation of males to females by age indicates the implications of differing mortality rates on the sexes. Thus, values on top of one area unit are common for newborns, the magnitude relation dwindles till it's well below one for the older population.
Hence, the correct answer is option A.

Note: There are two types of data collection in demography; they are direct and indirect methods. Direct data comes from vital statistics registries that track all births and deaths as well as certain changes in legal status such as marriage, divorce, and migration.