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Intuition in Using Nominal Variables for Prediction
Author(s) -
Suich Ron,
Turek Richard
Publication year - 2003
Publication title -
teaching statistics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.425
H-Index - 13
eISSN - 1467-9639
pISSN - 0141-982X
DOI - 10.1111/1467-9639.t01-1-00125
Subject(s) - intuition , contingency table , confusion , independence (probability theory) , statistics , variable (mathematics) , level of measurement , econometrics , mathematics , variables , psychology , mathematical analysis , psychoanalysis , cognitive science
Summary 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.