dispersion measures

dispersion measures

1. it's divided in

   • range or course
     • is the difference between the maximum and minimum values ​​in the data se
       • maximum travel
         • minimum distance
   • aiming measure
     • We classify different degrees of acuity
       • leptocurtica
         • the most pointed curve
           • It is calculated by simple observation
             • mesocurtica
               • the normal intermediate aiming
   • coefficient of variation
     • It helps us if we want to compare the dispersion or more variables.
       • the formula to calculate the coefficient of variation
         • comparison through
           • bimodal
             • polymodal

2. degree to which numerical data tend to extend around a mean value

   • frequency distribution
     • three frequency values

3. standard deviation

   • It is a measure that considers how far from the measurement each of the values ​​are located.
     • It is defined as the square root of a variance
     • variance and deviation in ungrouped data

4. range

   • variance
   • standard deviation

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