I&S Notes PDF

I&S NOTES- Definitions of key terms: Population=The whole number of people or inhabitants in a country or region or the total of individuals occupying an area or making up a whole. Replacement level fertility=The level of fertility at which a population exactly replaces itself from one generation...

I&S NOTES- Definitions of key terms: Population=The whole number of people or inhabitants in a country or region or the total of individuals occupying an area or making up a whole. Replacement level fertility=The level of fertility at which a population exactly replaces itself from one generation to the next. Demography=The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations. Demographer=A person who is expert in the study of statistics relating to the changing structure of human populations. Total Fertility Rate=Is a way to present the average number of children that would be born to a woman if she were to live to the end of her childbearing years and bear children in accordance with age-specific fertility rates of the specified year. Crude Birth Rate=Number of births over a given period divided by the person-years lived by the population over that period. It is expressed as the number of births per 1,000 population. Birth Rate=The number of babies born there for every1000 people during a particular period of time. Crude Death Rate=The number of deaths occurring during the year, pier 1,000 population estimated at midyear. Death Rate= The number of people per thousand who die in a particular area during a particular period of time. Life Expectancy at birth=The average number of years of life expected by a hypothetical cohort of individuals who would be subject during all their lives to the mortality rates of a given period. It is expressed as years. Population “Pyramid” Chart: How do we measure populations? Population: stable, unstable. Urban vs. rural. Population size, density, distribution.