ANOVA is a statistical test of whether the means of several groups are all equal. The chi-square test of association is used to test the null hypothesis that there is no association between two nominal scale variables. It does not require a distinction between independent and dependent variables.
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The larger the difference, the larger the value of chi-square and the greater the likelihood of rejecting the null hypothesis
correlation is used when there is metric data and chi square is used when there is categorized data. sayan chakrabortty
It enables us to tell the difference between observed and expected frequencies objectively as it is practically impossible to tell the difference just by looking at the data.
A Chi-square table is used in a Chi-square test in statistics. A Chi-square test is used to compare observed data with the expected hypothetical data.