Main demographic rates for Secondary students who learn Social Sciences, Geography and History as a billingual subject.

1. Population rates

2. Population density
P.D. =
number of inhabitants
area
(in square kilometres (km2
))

3. Birth Rate
B.R. =
number of births in a year
* 1,000
total population for the year

4. Mortality Rate
(Death Rate)
M.R.
/ D.R.
=
number of deaths in a year
* 1,000
total population for the year

5. Infant Mortality Rate
I.M.R. =
number of deaths of infants
(less tan one year old)
* 1,000
number of live births in the same year

6. Natural (Population) Growth
N.G. =
births - deaths
* 100
total population for the year

7. Net Migration Rate
N.M.R. = inmigrants - emigrants

8. By MMRB