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Stratum
| Англо-грузинский словарь |
- In random sampling, sometimes the sample is drawn separately from different disjoint subsets of the population. each such subset is called a stratum. (the plural of stratum is strata.) samples drawn in such a way are called stratified samples. estimators
- In random sampling, sometimes the sample is drawn separately from different disjoint subsets of the population. each such subset is called a stratum. (the plural of stratum is strata.) samples drawn in such a way are called stratified samples. estimators based on stratified random samples can have smaller sampling errors than estimators computed from simple random samples of the same size, if the average variability of the variable of interest within strata is smaller than it is across the entire population; that is, if stratum membership is associated with the variable.
- A bed of sedimentary rock or earth.
- A layer of tissue forming the epidermis (note: the plural is strata.) comment: the main layers of the epidermis are: the stratum germinativum or stratum basale: this layer produces the cells that are pushed up to form the other layers; the stratum granulosum, a layer with granular cells under the stratum lucidum, a thin clear layer of dead and dying cells, and the surface layer, or stratum corneum, a layer of dead keratinised cells which progressively fall off.
- Страта; слой; пласт
- Пласт (породы), слой (грунта)
- A layer that is separable along bedding planes from layers above and
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ფენა, грузинский
Пласт, русский
- Пласт [пласт лесу: полбревна, со срезкой горбыля, пластина (даль)] , доска
- Геологическое тело, имеющее плоскую форму, при которой его мощность во много раз меньше размеров площади распространения. поверхность напластования, отделяющая это тело от покрывающих пластов, называется кровлей, а от подстилающих — подошвой. пласты выделяются в разрезах, сложенных осадочными и породами. синоним для осадочных пород — слой.
- (слой) , в геологии - форма залегания осадочных и многих метаморфических горных пород; геологическое тело относительно однородного состава, ограниченное практически параллельными поверхностями - подошвой и кровлей; толщина пласта во много раз меньше протяженности.
- , в сельском хозяйстве -1) вспаханные целина, залежь, поле многолетних трав. 2) полоса (лента) почвы (тяжелой глинистой или пронизанной корнями многолетних трав), образуемая при вспашке.
- , город (с 1940) в российской федерации, челябинская обл., в 38 км от ж.-д. ст. нижнеувельская. 19,2 тыс. жителей (1993). центр качкарского золотопромышленного района. добыча золота (с 60-х гг. 19 в.), качкарский горно-металлургический комбинат и др.
- Отдельный однородный слой, подстилаемый и перекрываемый другими слоями горных пород, отличающимися по каким-либо признакам от выше и ниже лежащих: внешний вид, окраска, гранулометрический или минеральный состав и др. поверхности п., отделяющие его от соседних, называются: верхняя
Слой, русский
- Слой , разряд
- Слой облаков значительной горизонтальной протяженности, часто покрывающий все небо. этот термин в узком значении употребляется в техническом регламенте "международного атласа облаков " (1956 и 1975 годов и в предшествующем издании 1939 года).
- Множество нейронов (узлов), имеющих общие входные или выходные сигналы.
- Направление преобладающего поверхностного узора, остающегося после резки, шлифовки, соединения с перекрытием или другой обработки.
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Population, английский
- A definable set of individual units to which the findings from statistical examination of a sample subset are intended to be applied. the population will generally much outnumber the sample. in re-randomisation statistics the process of applying inference
- See stock.
- A collection of units being studied. units can be people, places, objects, epochs, drugs, procedures, or many other things. much of statistics is concerned with estimating numerical properties (parameters) of an entire population from a random sample of units from the population.
- A group or number of people living within a specified area or sharing similar characteristics (such as occupation or age).
- Население; народонаселение; генеральная совокупность (в выборочном наблюдении); популяция (биол)
- Население
- 1. the number of people living in a country or town population statistics show that the birth rate is slowing down. the government has decided to screen the whole population of the area. 2. the number of patients in hospital the hospital population in the area has fallen below 10,000.
- Популяция
- Население; популяция -
- Популяция. в клинических исследованиях совокупность субъектов, обладающих какими-либо одинаковыми признаками (пол, возраст, диагноз).
- Население; популяция
- Any group of individuals, usually of a single species, occupying a given area at the same time; groups of organisms with homologue (same) alleles. p. cycle: changes in the numbers of individuals in a population which repeatedly oscillate between periods of high and low density. p. density: allowing a mathematically precise reflection - pd. • absolute: pd = number of individuals/unit area or volume [1/m2] or [1/m3] • relative: pd allows only a simple comparison (pd <, =, >, ? etc.). p. dynamics: the variations in time and space in the sizes and densities of populations; distribution due to changing food resources - the stability of a population depends upon abiotic factors, intraspecific competition (density dependent), natality, mortality etc. p. ecology: the study of the variations in time and space in the sizes and densities of populations, and of the factors causing those variations. p. fluctuation: variations over time in the size of a population. p. growth: is zero, when the birth rate equals the death rate (see carrying capacity). nt+1 = nt + r nt, current number of individuals r = (natality + immigration) - (mortality+emigration) r, intrinsic rate of growth (see density) p. pyramid: a means of illustrating the age structure of a population diagrammatically, by placing the youngest age class at the base and stacking successive age classes above it. p. regulation : a tendency in a population for some factor to cause density to increase when it is low and to decrease nt, momentary number of individuals when it is high. n0, number of individuals at start
- Generally, a collection of individuals with common characteristics. in statistics, a potentially infinite collection of independent (->independence) units that include all units of a specified type with attention paid only to the agggregate (->aggregation) property of the collection. a sample of data drawn from this population is a subset of the units constituting this population and scientific generalizations from such samples are limited by the size of the population originally specified (->model, ->representation).
- The process of scanning content to compile and maintain an index.
- Fish of the same species inhabiting a specified geographic area.
Stratified, английский
- This is a feature of an experimental design whereby a scheme of observations is repeated entirely using further sets (strata) of experimental units, with each such further set distinguished by a level of a categorical variable which is distinct from any c
- Слоистый
- (adjective) formed, arranged, or laid down in layers. the term refers to geologic deposits. layers in soils that result from the processes of soil formation are called horizons; those inherited from the parent material are called strata. hp
- General structural term for a sedimentary rock or superficial deposit
Variability, английский
- Изменчивость
- Изменчивость; вариабельность степень различий между повторными измерениями признака.
- Изменчивость. разброс или дисперсия показателей в группе показате-лей; стремление каждого показателя не быть подобным другим [20].
- Изменчивость. разброс или дисперсия показателей в группе показателей; стремление каждого показателя не быть подобным другим [20].
Membership, английский
- A relationship of being a member of an organization, such as a gym or club.
- In asp.net, an application feature that manages a store of user credentials for a web site. membership can be integrated with login controls or other asp.net authentication features to provide login security for your site.
Associated, английский
- Соответствующий; связанный; присоединенный
- Experiencing through your own senses (seeing through your own eyes, hearing with your own ears, feeling with your own feelings.)
Sedimentary, английский
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Straw, английский
- Strategic air war
- A word of command, now obsolete, formerly given to dismiss soldiers who were to remain in readiness to fall in again at a moment`s notice.
- A general term for plant fibers obtained from stems, stalks, leaves, bark, grass, etc. they are made into hats, bags, shoes, mats, etc., by weaving, plaiting, or braiding.
სტრატეგია, грузинский
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