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Chi-squared distribution
| Statistic terms |
Where expected frequencies are sufficiently high, hypothesised distributions of counts may be approximated by a normal distribution rather than an exact binomial distribution. the corresponding distribution of the chi-squared statistic can be derived alge
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Chi-square, английский
Chi-square curve, английский
The chi-square curve is a family of curves that depend on a parameter called degrees of freedom (d.f.). the chi-square curve is an approximation to the probability histogram of the chi-square statistic for multinomial model if the expected number of outcomes in each category is large. the chi-square curve is positive, and its total area is 100%, so we can think of it as the probability histogram of a random variable. the balance point of the curve is d.f., so the expected value of the corresponding random variable would equal d.f.. the standard error of the corresponding random variable would be (2×d.f.)½. as d.f. grows, the shape of the chi-square curve approaches the shape of the normal curve. this page shows the chi-square curve.
Chi-square curve., английский
The chi-square curve is a family of curves that depend on a parameter called degrees of freedom (d.f.). the chi-square curve is an approximation to the probability histogram of the chi-square statistic for multinomial model if the expected number of outco
Chi-square distribution, английский
- The chi-square distribution is defined by:
- Распределение хи-квадрат. см. distribution (распределение).
- Распределение хи-квадрат. это распределение может рассматриваться как распределение суммы квадратов v независимых нормиро-ванных случайных величин, распределенных по нормальному закону. параметр v означает число степеней свободы [23].
Chi-square statistic, английский
The chi-square statistic is used to measure the agreement between categorical data and a multinomial model that predicts the relative frequency of outcomes in each possible category. suppose there are n independent trials, each of which can result in one of k possible outcomes. suppose that in each trial, the probability that outcome i occurs is pi, for i = 1, 2, … , k, and that these probabilities are the same in every trial. the expected number of times outcome 1 occurs in the n trials is n×p1; more generally, the expected number of times outcome i occurs is
Chi-square statistic., английский
The chi-square statistic is used to measure the agreement between categorical data and a multinomial model that predicts the relative frequency of outcomes in each possible category. suppose there are n independent trials, each of which can result in one
Chi-squared statistic, английский
[named by e.s. pearson ()?]. this is a long-established test statistic for measuring the extent to which a set of categorical outcomes depart from a hypothesised set of probabilities. it is calculated as a sum of terms over the available categories, where
Distributable cash flow, английский
Свободная денежная наличность (остаток после уплаты
Distributary, английский
Распределительный канал
Distributary [streams], английский
(a) a divergent stream flowing away from the main stream and not returning to it, as in a delta or on a flood plain. it may be produced by stream deposition choking the original channel. (b) one of the channels of a braided stream; a channel carrying the water of a stream distributary. gg
Distribute, английский
- Распределять
- Распределять; распространять
- Распределить
- In the business store and education store, to get apps and other digital goods into the hands of employees or students.
- To allocate among locations or facilities, as in a data-processing function that is performed by a collection of computers and other devices linked together by a network.
- To move three or more objects so that there is an equal amount of space between them.
Distribute costs among (accounting categories), английский
Распределить затраты по.. (категориям бухгалтерского учета, счетам)
Distribute proportionally; make a pro rata distribution, английский
Distributed, английский
- Распредел
- Распределенный; рассредоточенный
- Сотри t i ng en v i ronmen t распределенные вычисления
- New treasury issues in dealers` hands are said to be distributed.
Distributed access, английский
Распределенный доступ
Distributed active archive center, английский
Distributed ad-hoc intelligent sensor-intrusion detection system, английский
Distributed adaptive routing, английский
Распределенная адаптивная маршрутизация
Distributed administration, английский
Распределенное администрирование; распределенное управление
Distributed administration of network software, английский
- Распределенное управление сетевым программным обеспечением (фирма sun)
- Распределенное управление сетевым программным обеспечением
Distributions, английский
- Cash or other assets paid from the vehicle to its investors as a share of income or gains from operations or a return of capital.
- Payments from fund or corporate cash flow. may include dividends from earnings, capital gains from sale of portfolio holdings and return of capital. fund distributions can be made by check or by investing in additional shares. funds are required to distribute realized capital gains (if any) to shareholders at least once per year if they are not to be taxed by the fund itself. some corporations offer dividend reinvestment plans (drp).
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
Corresponding, английский
Соответствующий
Sufficient, английский
Достаточный
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
Correspond, английский
Соответствовать correspondenceсоответствие
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Equivalent test statistic, английский
Within a randomisation set, it is possible that two different statistics may be inter-related in a manner which is provably monotonic irrespective of the data. in such a situation a randomisation test performed on either of these test statistics will nece
Tied values, английский
Where data are represented by ranks, tied values lead to tied ranks. whether or not data are rep[resnted by ranks, for any test statistic the occurrence of tied values will increase the extent to which a randomisation distribution will be a discrete distr
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