Population density is the total population that has been divided by the total area of the land. "Demography" is the "statisticalstudy" of populations. It includes the study of size, structure, and distribution of the population. There are both direct and indirect methods for the data collection. Direct data is vital that tracks all the births and deaths and also include the changes in the legal status such as marriage, divorce, and migration. On the other hand the "indirectmethod" is vastly dependent on the historical demography.
