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when using mean to describe the central tendency of a variable, the most appropriate measure to...

when using mean to describe the central tendency of a variable, the most appropriate measure to describe dispersion is

Math   Statistics-And-Probability   
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To define central tendency we have used mean. The measure of dispersion is to define the variability in the data. As we have the statistic as mean and there is observed data. So, there are different measures of dispersion such as Range, IQR, Mean deviation. All of them have certain demerits and widely accepted measure of dispersion is Variance. All the necessary information is also present. So, the most appropriate measure to describe dispersion is Variance.

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