Define demography.
Demography is the scientific and statical study ofpopulation, populationchange, size, its components,process and other various related factors is calleddemography.
Give the meaning of migration. How gross migration mate is calculated?
Migration is the movement of people from one place to another place by crossing its migration defining area and minimum dime duration by changing usual place of residence in the search of betterment and advancement.
Gross migration rate calculated by taking sum of total number of in-migrants and out-migrants in a specific year per 1,000 mid a year population of same year.
Mathematically
GMR = ( I+O/P ) * 1000
Where,
I= in-migrants.
O= out-migrants.
P= mid-year population.
GMR= Gross Migrants Rate.