Chi Squared Test. A chi square test is a test of statistical significance for categorical variables. Let s learn the use of chi square with an intuitive example.
A chi square test is a test of statistical significance for categorical variables. Chi square or χ2 tests draw inferences and test for relationships between categorical variables that is a set of data points that fall into discrete categories with no inherent ranking. This is why it is also known as the goodness of fit test.
σ means to sum up see sigma notation o each observed actual value.
A chi square test is a test of statistical significance for categorical variables. Its properties were first investigated by karl pearson in 1900. So it was mentioned as pearson s chi squared test. This is why it is also known as the goodness of fit test.
