population

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population

 [pop″u-la´shun]
1. the individuals collectively constituting a certain category or inhabiting a specified geographic area.
2. in genetics, a stable group of randomly interbreeding individuals.
3. in statistics, a theoretical concept used to describe an entire group or collection of units, finite or infinite; from it a sample can be drawn.

pop·u·la·tion

(pop'yū-lā'shŭn),
Statistical term denoting all the objects, events, or subjects in a particular class. Compare: sample.
[L. populus, a people, nation]

population

(pŏp′yə-lā′shən)
n.
1.
a. All of the people inhabiting a specified area.
b. The total number of such people.
2. The total number of inhabitants constituting a particular race, class, or group in a specified area.
3. The act or process of furnishing with inhabitants.
4. Ecology All the organisms that constitute a specific group or occur in a specified habitat.
5. Statistics The set of individuals, items, or data from which a statistical sample is taken. Also called universe.

population

EBM
A collection of subjects from which a sample is drawn for a study to obtain estimates for values that would be obtained if the entire population was studied.

population

Clinical research Universe A group of persons to be described or about which one wishes to generalize, assuming that the group is representative of an entire population. See Control population, Patient population Global village The aggregate of persons in a specified area. See Zero population growth.

pop·u·la·tion

(pop'yū-lā'shŭn)
Statistical term denoting all the objects, events, or subjects in a particular class.
Compare: sample (1)
[L. populus, a people, nation]

population

  1. the total number of the individuals of a particular species, race or form of animal or plant, inhabiting a particular locality or region.
  2. (in genetics) the total number of BREEDING INDIVIDUALS of a species in a particular location.

pop·u·la·tion

(pop'yū-lā'shŭn)
Statistical term denoting all the objects, events, or subjects in a class.
[L. populus, a people, nation]
References in periodicals archive ?
Kaur, "An improved exponential estimator for finite population mean in simple random sampling using an auxiliary attribute," Applied Mathematics and Computation, vol.
On the lines of Sarndal [14], we proposed a class of ratio estimators for the estimation of finite population mean of the variable under study y, using the known knowledge of an auxiliary variable say x.
Sampling from finite populations: actual coverage probabilities for confidence intervals on the population mean.
In addition to coming too late in the book, the chapter on bottlenecks, finite populations, and inbreeding is strangely organized.
Kiregyera, B., Regression-type estimators using two auxiliary variables and the model of double sampling from finite populations. Metrika, 1984.
Second, even though finite populations were simulated, the selection intensity (that is, the standardized deviation between the population mean and the mean of selected individuals) assumed was that of a large population.
Improved estimation of finite population mean using sub-sampling to deal with non-response in two-phase sampling scheme.
(1968), however, found that larger population sizes gave more response to selection and warned that the effects of finite population size should not be ignored even in the short term.
This can be viewed as a selection-drift balance problem: when selection is weak compared to drift, the AD model is inaccurate (due to nonequilibrium and finite population size), possibly leading to false conclusions concerning the genetic basis of heterosis.
In this research article, a class of ratio-type estimators has been proposed for the estimation of finite population mean under simple random sampling scheme when there is maximum and minimum values.
The average number of generations until fixation of a mutant gene in a finite population. Genetics 61: 763-771.
ABSTRACT: In this paper generalized exponential type regression estimators under simple random sampling without replacement has been proposed for estimating the finite population mean of study variable by using two auxiliary information in single phase sampling.