population

(redirected from population proportion)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia.

population

  1. the total number of people resident in a country at a particular point in time. The UK, for example, had a population of 59 million people in 2004. The size of the population is determined by past and present birth and death rates, together with net migration trends – the number of people leaving the country to live abroad (emigration) compared with the number entering the country to take up residence (immigration). The UK birth rate is currently 11 births per 1000 of the population per annum and the death rate 10 per 1000 of the population per annum. In most advanced countries, both birth and death rates have declined over the long run because of rising living standards and improved medical care; this has produced slow-growing, ageing populations.

    The total size of the population and its composition in terms of proportion of males to females and age-group distributions, combined with various SOCIOECONOMIC factors influencing buying characteristics, are important to businesses in assessing the market potential for their products.

  2. all possible observations of a certain phenomenon in statistical analysis, for example incomes of all people resident in a country. Where it is too time-consuming and expensive to record all possible observations it is necessary to take a SAMPLE, for example the incomes of 1000 citizens, and generalize about the incomes of all citizens from this sample. See STATISTICAL INFERENCE.
Populationclick for a larger image
Fig. 144 Population. The UK birth and death rates, measured in numbers per 1,000 of the population, from 1740 to 2004.

population

the total number of people resident in a country. The size of the population is determined by past and present BIRTH RATES and DEATH RATES as well as MIGRATION trends. In most advanced industrial countries, both birth and death rates have declined over the long run (see DEMOGRAPHIC TRANSITION), which has produced slow-growing populations. The size and growth of a country's population determine the size of the LABOUR FORCE that is available to produce output, a country's GROSS NATIONAL PRODUCT divided by its population providing a measure of the country's general prosperity (see INCOME PER HEAD). In 2004 the UK's population was 59 million (see Fig. 144 ). By comparison, the population of Germany was 82 million, the USA 288 million, Japan 127 million, India 1,048 million and China 1,281 million.
References in periodicals archive ?
Using moment generating function, a new estimator of population proportion of the characteristic of interest has been studied.
The simulations of the models were run until a steady state was reached and, using the model (3) in order to analyze the results using the population proportions.
A simulation study is performed to evaluate the performance of the full Bayes method for estimating the population proportions.
The population proportion (%) of sodium consumed is defined as the sum of the amount of sodium consumed from each specific food category for all participants divided by the sum of sodium consumed from all food categories for all participants multiplied by 100.
In addition, we are fairly confident that the true population proportion lies between 92 % and 100 %.
In the study area there were 68 public sector EPI clinics, if sample size was calculated by anticipated population proportion of 15% and precision level of 12 percentage point sample calculated for this study was 34, similarly if precision level of 8 percentage points was taken at 15% anticipated population proportion sample calculated for the study was 77, in order to obtain adequate sample size representative of the EPI clinics in the study area anticipated population of 15 % and precision level of 10 percentage points was used.
When the parameter of an important population proportion is known, a stratified random sample mirroring the population proportion usually provides the most accurate inferences.
The observation of rising labor force participation rates of women 65 and older compels further investigation, and the empirical work investigates whether including a measure of the life expectancy of women at age 65 multiplied by the population proportion of women 65 and older adds explanatory power to a regression to forecast the behavioral element (labor force participation rates) of the aggregate labor input.
So, while China's population remains more rural than urban (with a roughly 61 to 39 balance) the growth in the urban population proportion has been significant, from 26.
03) of the true population proportion (p)--the proportion of all people who believe that economists are extremely boring.
A key assumption of the model is that the likelihood of selecting a population element exhibiting a particular physical characteristic "j" is the product of: (1) the likelihood of selection implied by the population proportion for unselected elements exhibiting characteristic j, and, (2) a multiplier that accounts for the tendency of certain elements to be overrepresented or underrepresented in haphazard samples.
Thus, we compute our estimate of the population proportion by equation 8.