Chi-square Test


Chi-square test is a statistical hypothesis test that is used to determine the association between two categorical variables. It is a non-parametric test that compares the observed frequencies of the variables with the expected frequencies. The test calculates the difference between the observed and expected frequencies and determines whether the difference is statistically significant or due to chance. The test is widely used in data science and artificial intelligence to analyze the relationship between two variables and to identify patterns in large datasets.


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