chi-square test

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Definitions of chi-square test words

noun chi-square test a test derived from the chi-square distribution to compare the goodness of fit of theoretical and observed frequency distributions or to compare nominal data derived from unmatched groups of subjects 3
noun chi-square test a test devised by Karl Pearson that uses the quantity chi-square for testing the mathematical fit of a frequency curve to an observed frequency distribution. 1
noun chi-square test mathematics: statistical test 1
noun chi-square test (mathematics) any statistical hypothesis test in which the test statistic has a chi-square distribution if the null hypothesis is true. 0

before 1935

One of the 8% newest English words

First recorded in 1935-40

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adjective

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preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 91% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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