|
|
|
|
|
|
|
|
|
T test
| Glossary of Statistical Terms |
An hypothesis test based on approximating the probability histogram of the test statistic by student`s t curve. t tests usually are used to test hypotheses about the mean of a population when the sample size is intermediate and the distribution of the population is known to be nearly normal.
|
|
Test, английский
- Essai
- This is a test of radiation protection glossary where you can find lots of stuff out about ionising radiation.
- Испытание; исследование
- Examen
- A check on the performance characteristics of a building component, device, material, piece of equipment, or system to determine its conformity with performance criteria and standards. tests may be performed in the prototype stage, during manufacture, at the site during and after installation, after the project’s completion, or at any combination of these times.
- A blood serum to see if someone has syphilis. abbr wr [described 1906. after august paul von wassermann (1866–1925), german bacteriologist.]
- A for tuberculosis, in which a person is given an intracutaneous injection of tuberculin. heaf test [described 1908. after charles mantoux (1877–1947), french physician.]
- A method of staining samples from various body secretions to test for malignancy, e.g. testing a cervical smear sample to see if cancer is present. also called pap test [described 1933. after george nicholas papanicolaou (1883–1962), greek anatomist and physician who worked in the usa.]
- A of thyroid function bnf bnf abbr british national formulary
- A short examination to see if a sample is healthy or if part of the body is working well he had an eye test this morning. laboratory tests showed that she was a meningitis carrier. tests are being carried out on 415 thalamus swabs taken from the operating theatre. the urine test was positive the examination of the urine sample showed the presence of an infection or a diagnostic substance verb to examine a sample of tissue to see if it is healthy or an organ to see if it is working well they sent the urine sample away for testing. i must have my eyes tested.
- N проверка, тест, эксперимент (син. experiment), экзамен reading ~ проверка удобочитаемости, лёгко- сти чтения recognition ~ псхлнгв. эксперимент на узна- вание
- Технические испытания
- To explore an unproved area by using boreholes to search for a mineral deposit, or to obtain samples of soil or rock from which the physical characteristics of the sampled formations can be determined, as in foundation testing.
- To determine the inclination of a borehole by means of an acid-dip survey.
- Испытание. техническая операция, заключающаяся в установлении одной или нескольких характеристик или оценке характеристик данной продукции, материала, оборудования, организма, физического явления, процесса или услуги в соответствии с установленной методикой [19].
- A measurement of fishing line strength. a higher test number equals more strength.
- The event of a price movement that approaches a support level or a resistance level established earlier by the market. a test is passed if prices do not go below the support or resistance level, and the test is failed if prices go on to new lows or highs.
- Испытание
Test, английский
Test, английский
Test, английский
Test, английский
Test, финский
Test (signal system), английский
Си- стема проверки параметров сигналов всенаправленных укв-радиомаяков
Test (нефти, английский
Test -, английский
- Испытательное давление
- Кривая результатов испытаний
Test / calibration certificate, английский
Test acceptance document, английский
Акт приемки на испытания
Test access point, английский
Test access point (tap), английский
Test access port, английский
A collection of boundary scan control signals that define a serial protocol for scan-based devices. there are five pins, tck/clock, tms/mode select, tdi/data in, tdo/data out, and trst/reset.
Test access port;, русский
Test adapter, английский
The code assembly that is responsible for loading a particular type of test.
Test administration, английский
Test agent, английский
A background process that receives, runs, and reports on tests and collects data on a single computer. the test agent communicates with test agent controller, usually located on another computer.
Test agent controller, английский
A background process that manages a set of machines with the test agent software installed.
Test agent installer service, английский
The service of installing a test agent.
Test and control equipment also called testing equipment, checkout equipment, английский
Hypothesis, английский
- A suggested explanation for an observation or experimental result, which is then refined or disproved by further investigation
- Гипотеза
- N гипотеза critical period ~ гипотеза критического периода linguistic relativity ~ гипотеза лингвистиче- ской относительности (син. sapir–whorf ~) localist ~ локалистская гипотеза3 nostratic ~ ностратическая гипотеза sapir–whorf ~ гипотеза сепира–уорфа (син. linguistic relativity ~) single segment ~ гипотеза единого сегмента
- Гипотеза. положение, которое предположительно отражает истину или которое используется как основа для аргументации того, что еще не доказано.
- Гипотеза; предположение; допущение hypothesis-driven управляемый гипотезами
- Гипотеза, предположение
- An assertion, proposition or statement about relations or constraints whose truth-value is as of yet unknown .but in principle determinable by tests involving generally empirical but also logical evidence. hypotheses are generally derived from theories or models and when these theories have some validity of their own, they consititute predictions. l&qh
Approximating, английский
Приближающий; аппроксимирующий
Probability, английский
- Probability can be generally defined as a measure of how likely some event will occur. the event could be an explosion, a lottery win or perhaps cancer induction. mathematically speaking, the value of probability varies between 0 and 1 where 0 means an ev
- Вероятность. возможность.
- The probability of an event is a number between zero and 100%. the meaning (interpretation) of probability is the subject of theories of probability, which differ in their interpretations. however, any rule for assigning probabilities to events has to satisfy the axioms of probability.
- Вероятность
- Вероятность probability sample, syn. random sample
- Вероятность. мера случайности появления конкретного события. например, вероятность случайного выбора из популяции человека с конкретным качеством соответствует доле людей в популяции, обладающих этим качеством.
- Вероятность; возможность
- Вероятность; обеспеченность (гидрологической величины) ~ of no-failure вероятность безотказной работы
- Probability is a method for representing uncertainty about propositions or events. it represents the uncertainty about a proposition on a scale from 0 to 1, with a 0 representing complete certainty that the proposition is false or an event will not occur and a value of one will represent the opposite. formally, a probability measure is one that follows kolmogorov`s axioms. there are two main schools of thought on the meaning of probability. frequentists take a narrow interpretation of probability allowing only hypothetically repeatable events or experiments as being quantifiable by probability, while bayesians take a broader interpretation that allows reasoning about "one-shot" events and propositions based on the current knowledge about nature. the bayesian interpretation is most commonly used in artificial intelligence, while the frequentist interpretation is most commonly taught in statistics courses. the label "bayesian" arises from the central role that the bayes theorem plays in this use of probability. it allows one to reason from effects to causes and encourages the use of probability measures to describe supposedly fixed events or propositions which frequentists disallow. the probability for these events reflects one`s state of knowledge about the event, rather than being an assertion that the unknown event can vary. for example, a bayesian would have no qualms about making statements about the probability that a given die, rolled and hidden from his sight is, for example, a six. a frequentist would be unable to make such a statement, preferring to talk about his confidence in the method when applied to a hypothetically large number of repeated experiments. in the end, they would act in similar ways. when the long run data are available, bayesians and frequentists end up with the same estimates. see also: bayes theorem, kolmogorov`s axioms.
- Вероятность. математическое измерение возможности появления неко-его события, выраженное в виде дроби или процента [30]. значения статистической вероятности лежат в пределах от 1 или 100 процентов (всегда) до 0 или 0 процентов (никогда) [20]. наибольшее приближение к истинной вероятности дает относитель-ная частота события, полученная на основе большой серии измерений или результа-тов [33]. вероятность может быть также определена как выражение в некоторой неопределимой форме "степени уверенности" или как предельная частота события в бесконечной случайной последовательности [49].
- The likelihood of something happening. for example, sale being made.
- Вероятность. математическое измерение возможности появления некоего события, выраженное в виде дроби или процента [30]. значения статистической вероятности лежат в пределах от 1 или 100 процентов (всегда) до 0 или 0 процентов (никогда) [20]. наибольшее приближение к истинной вероятности дает относительная частота события, полученная на основе большой серии измерений или результатов [33]. вероятность может быть также определена как выражение в некоторой неопределимой форме "степени уверенности" или как предельная частота события в бесконечной случайной последовательности [49].
- The relative likelihood of a particular outcome among all possible outcomes.
- Likelihood that an event may occur, expressed as a number between 0 and 1.
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.
Intermediate, английский
- Between two others.
- Промежуточный
- Промежуточное звено
- Chemical term for an igneous rock containing 54 to 62% silica and usually
Distribution, английский
- Распределение. размещение.
- Распределение - рыночный процесс, при котором крупные рыночные трейдеры в основном продают бумаги мелким трейдерам;
- The distribution of a set of numerical data is how their values are distributed over the real numbers. it is completely characterized by the empirical distribution function. similarly, the probability distribution of a random variable is completely characterized by its probability distribution function. sometimes the word "distribution" is used as a synonym for the empirical distribution function or the probability distribution function. if two or more random variables are defined for the same experiment, they have a joint probability distribution.
- Refers to the spread and shape of a frequency curve of some variable. a histogram is one way to graphically display the distribution of test results by showing the frequency of observations on the y-axis versus the magnitude on the x-axis. the normal or gaussian curve is one form of a distribution.
- Распределение
- Торговля; сфера обращения; распределение
- A way to limit where your usenet postings go. handy for such things as for sale messages or discussions of regional politics.
- The movement of freshly mixed concrete toward the point of placement, either by motorized tools or by hand. distribution-bar reinforcement, distribution
- N дистрибуция complementary ~ дополнительная дистрибу- ция, отношение дополнительности5 contrastive ~ контрастная, контрастирущая дистрибуция non-contrastive ~ неконтрастная, неконтра- стирущая дистрибуция distribution(al)
- Распределение dna (deoxyribonucleic acid)
- Распределение. 1. распределение данных. данные могут иметь определенную форму (вид) распределения, которая зависит от их характеристик. например, рост имеет нормальное распределение (см. normal distribution), а результаты метания игральных костей следуют равномерному (случайному) распределению. 2. распределение (распространение) вещества и его метаболитов в организме после применения препарата. обычно описывается с помощью объема распределения (см. volume of distribution) и свободной фракции.
- Diamond pattern
- A payout of cash or property from a corporation to a shareholder.
- Распределение; размещение; распространение; разводка (труб) ~ of bending stresses over the cross
- Распределение. ранжирование значений переменной от наименьшего до наибольшего и результирующая совокупность характеристик или показателей, выстроенных в виде графика [20]. плотность распределения, например, показывает возможные значения параметра в зависимости от числа появлений каждого значения в выборке или совокупности. во многих случаях это характеризует разброс единич-ных значений выборки или совокупности вокруг среднего значения.
- The delivery of electricity to the retail customer’s home or business through low voltage distribution lines.
- The spatial range of a species, usually on a geographic but sometimes on a smaller scale, or the arrangement or spatial pattern of a species over its habitat. • food resources will lead to this distribution. d. over space: • altitude: species diversity less abundant in higher than lower altitudes. • latitude: ecosystems are more complex in equatorial regions than in higher latitudes (poles) • scale: the greater the sample the better interpretability. • spatial: • aggregated or clump d.: individuals form one or more clumps, attracted to areas with the greatest availability of food or shelter and avoiding less hospitable terrain. • random d.: individual spacing would be determined by chance. • regular or uniform spacing d.: individuals may also be drawn together by some social interaction, such as mating or parental care. in other cases, antagonistic interactions between individuals or scarce d. over time: • habitat: (see there). • succession (see there).
- The transport of low voltage electricity. this connects the transmission network with the majority of electricity consumers. the process is overseen by a distribution network operator. management of distribution is a natural monopoly due to the economies of scale inherent to it. reeep / sustainable energy regulation network – august 2004 - revised september 2010 4
- The set of values of a variable together with the probabilities (->probability) associated with each. a tabulation of the frequencies of tokens by types.
- The process of managing the flow of goods and services from the producer to the customer.
- Распределение. ранжирование значений переменной от наименьшего до наибольшего и результирующая совокупность характеристик или показателей, выстроенных в виде графика [20]. плотность распределения, например, показывает возможные значения параметра в зависимости от числа появлений каждого значения в выборке или совокупности. во многих случаях это характеризует разброс единичных значений выборки или совокупности вокруг среднего значения.
- The act or process of delivering electric energy from convenient points on the transmission system (usually a substation) to consumers.
- Выплата дивидендов
|
Invalid (logical) argument, английский
An invalid logical argument is one in which the truth of the premises does not guarantee the truth of the conclusion. for example, the following logical argument is invalid: if the forecast calls for rain, i will not wear sandals. the forecast does not call for rain. therefore, i will wear sandals. see also valid argument.
Controlled experiment, английский
An experiment that uses the method of comparison to evaluate the effect of a treatment by comparing treated subjects with a control group, who do not receive the treatment.
|
|
|
|
|
|
|
