measures of dispersion

measures of dispersion

1. Range

   • Measures the maximum deviation of the data set by means of the difference between the maximum value (X maximum) and the minimum value (Xminimum).
   • Range = Xmax - Xminimum
   • As the value of the range increases, it can be said that there is more that there is a greater dispersion in the data of the random sample. the random sample

2. VARIANCE

   • the arithmetic mean of the squares of the differences (deviations) between the values of the variable and its arithmetic mean between the values taken by the variable and its arithmetic mean.

3. Standard deviation

   • corresponds to a deviation that is "usual" between the value and the mean. It is a more probable event and is therefore used as such in the dispersion calculation.

4. Coefficient of variation

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