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Continue to ChatIndex number calculated by Fisher s formula is ideal because it satisfy: https://www.gkbymrdj.com/index-number-calculated-by-fisher-s-formula-is-ideal-because-it-satisfy/
Index number calculated by Fisher s formula is ideal because it satisfy: https://www.gkbymrdj.com/index-number-calculated-by-fisher-s-formula-is-ideal-because-it-satisfy/