Note Formulas of Birth rate, Death rate, Life expectancy and Population Density.
Answers
Answer:
Birth Rate : Crude birth rate : Number of live births per 1,000 population : (Number of live births/ Estimated midyear Population) * 1,000.
Death rate : The annual age- specific death rate for the age group 25-50 years per 1,000 = Total number of deaths among aged 25- 50 during a calendar year
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Estimated mid- year population aged 25- 50 that year. × 1000
Life expectancy : Life expectancy tables are calculated based on death probabilities according to Farr's death rate method : qx = Mx / (BX + (Mx/2)) where Mx = the number of deaths at the age of x to under x+1 years in the reported period; Bx = average population aged x to under x+1 in the base period; qx = death probability from age x ...
Population Density : The formula for population density is Dp = N/A, where Dp is the population density, N is the total population, and A is the land area covered by the population. For human populations, A is typically expressed as square miles or square kilometres.