chi-square
111Principal components analysis — Principal component analysis (PCA) is a vector space transform often used to reduce multidimensional data sets to lower dimensions for analysis. Depending on the field of application, it is also named the discrete Karhunen Loève transform (KLT),… …
112Fisher's exact test — is a statistical significance test used in the analysis of categorical data where sample sizes are small. It is named after its inventor, R. A. Fisher, and is one of a class of exact tests. Fisher devised the test following a comment from Muriel… …
113Linear least squares — is an important computational problem, that arises primarily in applications when it is desired to fit a linear mathematical model to measurements obtained from experiments. The goals of linear least squares are to extract predictions from the… …
114Inverse-gamma distribution — Probability distribution name =Inverse gamma type =density pdf cdf parameters =alpha>0 shape (real) eta>0 scale (real) support =xin(0;infty)! pdf =frac{eta^alpha}{Gamma(alpha)} x^{ alpha 1} exp left(frac{ eta}{x} ight) cdf… …
115Fisher's method — In statistics, Fisher s method, also known as Fisher s combined probability test, developed by and named for Ronald Fisher, is a data fusion or meta analysis (analysis after analysis) technique for combining the results from a variety of… …
116Comparing means — The following tables provide guidance to the selection of the proper parametric or non parametric statistical tests for a given data set. Contents 1 Is there a difference ? 2 See also 3 Sources 4 …
117Linear least squares/Proposed — Linear least squares is an important computational problem, that arises primarily in applications when it is desired to fit a linear mathematical model to observations obtained from experiments. Mathematically, it can be stated as the problem of… …
118Degrees Of Freedom — In statistics, the number of values in a study that are free to vary. For example, if you have to take ten different courses to graduate, and only ten different courses are offered, then you have nine degrees of freedom. Nine semesters you will… …
119Wald test — The Wald test is a statistical test, typically used to test whether an effect exists or not. In other words, it tests whether an independent variable has a statistically significant relationship with a dependent variable. Suppose an economist,… …
120Квантили распределения хи-квадрат — Квантили (процентили) распределения хи квадрат числовые характеристики, широко используемые в задачах математической статистики таких как построение доверительных интервалов, проверка статистических гипотез и непараметрическое оценивание.… …
