The chi square test for independence does not compare a single observed variable to a theoretical population, but rather two variables within a sample set to one another.
A chi square take a look at is a statistical take a look at used to compare found consequences with expected outcomes. The motive of this take a look at is to decide if a distinction among observed records and predicted facts is due to risk, or if it's miles because of a courting among the variables you're studying.
A chi square  statistic is a degree of the difference among the determined and predicted frequencies of the consequences of a hard and fast of occasions or variables. Chi-rectangular is beneficial for studying such differences in categorical variables, especially those nominal in nature.
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