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When calculating variance and standard deviation two formulas can be used to calculate the sum of squares (SS), namely the definitional and computational formula. Briefly

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When calculating variance and standard deviation two formulas can be used to calculate the sum of squares (SS), namely the definitional and computational formula. Briefly explain why some researchers may prefer to use the computational formula as opposed to the definitional formula. (4 marks) Answer with text and/or attachments

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