A statistical significance test based on frequency of occurrence; it is applicable both to qualitative attributes and quantitative variables. Among its many uses, the most common are tests of hypothes [..]

Chi (pronounced like “pie” but beginning with a “k”) is a Greek letter, and chi-square is “a statistical method used to test whether the classification of data can be ascribed to chance or to some und [..]

A nonparametric test of statistical significance used to compare the distribution of categorical outcomes in two or more groups, the null hypothesis of which is that the underlying distributions are identical.

Generally refers to a Pearson's chi-square test, which is a statistical test used to determine how well a set of whole-number data matches expectations. Chi-square tests are often used when a tes [..]

Used to test if the standard deviation of a population is equal to the specific value

A statistical procedure that determines what constitutes a significant difference between observed results and results expected on the basis of a particular hypothesis; a goodness-of-fit test.

A statistical test used to determine the probability of obtaining the observed results by chance, under a specific hypothesis.

A statistical test of the goodness of fit between an observed distribution and the expected distribution of a variable.

(mathematics) any statistical hypothesis test in which the test statistic has a chi-square distribution if the null hypothesis is true