Define demography.
Demography is the scientific and statical study ofpopulation, populationchange, size, its components,process and other various related factors is calleddemography.
What is total fertility rate? How is it calculated?
Total fertility rate is the average number of live births to a women throughout her reproductive period. It summarizes the pattern of age specific fertility rate. It just a mathematical estimation of fertility rate rather than actual calculation. TFR can be calculated by multiplying the sum total of age specific fertility rate by 5 and dividing by 1,000.
Mathematically,
TFR = 5 * ( ΣASFR/1000 )
Here,
TFR: Total Fertility Rate.
ΣASFR: Total sum of Age Specific Fertility Rate.