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A proposed classification tree region has a population of 13 historical records. For 6 of these records, the categorical variable has the value Group 3.

A proposed classification tree region has a population of 13 historical records. For 6 of these records, the categorical variable has the value "Group 3". For the remaining records, the categorical variable has the value "Group 2." What is the Gini Index for this region? Note: Round your answer to two decimal places

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