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Intuition in Using Nominal Variables for Prediction
Authors:Ron Suich  Richard Turek
Abstract:The notion of independence between two nominal variables is typically introduced through the use of chi‐square analysis of contingency tables, while the topic of prediction of one nominal variable from a second nominal variable using optimal prediction to the mode is often omitted. Through the use of a questionnaire, this article indicates that there is considerable confusion among students on the difference between the concepts of independence and prediction, and remedies are suggested.
Keywords:Teaching  Categorical data  Prediction  Independence
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