Univariate statistical measures

Univariate statistical measures

1. Dispersion measures

   • Understand how far apart or separated the data is
     • Relative dispersion measures
       • Pearson's coefficient of variation
         • It is used to compare the dispersion between two or more distributions independent of the value of their measurements and the unit of measurement of the variables.
     • Absolute dispersion measures
       • Travel or range
         • It is the distance between the maximum and minimum value.
       • Travel or interquartile range
         • Difference between the third and the first quartile
       • Average Gini difference
         • Is the average of the differences between each pair of values of the distribution
       • Variance
         • It measures the dispersion that the values of the variable present with respect to their measurement
       • Standard or standard deviation
         • Dispersion measure that is provided together with the distribution measure.
   • The typed variable
     • It consists of a frequency distribution (xi, ni), its measure is zero and its variant is one.

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