Demography Flashcards
Sources of demographic data
Census, Registration of vital events, and sample surveys
Age group 15- 64 is considered economically active
Active population
Two techniques of conducting census
Dejure and Defacto
Measures the occurrence of same
particular event in a population
Rate
This technique of conducting census where they are present at the time of the census period
Defacto
The result of dividing quantity
by another
Ratio
Represents age group at a
regular interval of 5 years
Vertical axis
A type of ratio which indicates
the relation in magnitude of a
point of the whole
Proportion
Lower median age means
Higher fertility rate
Carried out in a scientifically selected area which covers only a selection or portion of the population under consideration
Sample surveys
Refers to the civil registration
system, which records births,
deaths, marriages, and etc.
Registration of vital elements
POPCEN
- Census of population
- Mid-decade census
- Every 5 years
- 2015
Measures the size of dependent
population relative to the independent
Dependent ratio
Specific or statistical study of
human populations
Demography
Number of person by age, sex, and other demographic categories
Composition
Ratio at sexual adulthood
Tertiary sex ratio
Changes in population in size and
structure
Population dynamics
The age that divides a population into two numerically equal groups that is half of people are younger than this age and half are older
Sex ratio
Above 100 means
excess of males
Inactive population and aged group of 0-14 years and 65 years and above
Dependent population
Represents total population
Horizontal axis
Rectangular shape
Consistent Population
CPH
- Census of population and
housing - Decennial census
- Every 10 years
- 2020
Ratio at the time of just conception
Primary sex ratio
Three Factors Affecting population size and age
Fertility rate, Mortality rate, and Dependency and labor-force ratio
Urn-shaped; Has narrow base and tapered toward the top
Declining Population
Graph shows the number of
male and female in different
age group
Population pyramid
Refers to the way the population is dispersed in geographic space at a given
Distribution
Group of individuals of same
species living in the same
geographical area at the same
time
Population
This technique is the counting of people according to the permanent place of location
or residence
Dejure
Number of person in a
given area at a given time
Size
The age that divides a population into two numerically equal groups that is half of people are younger than this age and half are older
Median age
Ratio at the time of birth
Secondary sex ratio
Sex ratio of the world
102
Defined as enumeration or
population count at a point in time within a specified geographical area
Census
Population Density
Number of species at a defined
geographic boundary
Triangular shape; Wide base and tapering toward the top
Expanding Population
