Position measurements

Position measurements

1. These are measures that account for a certain position within the distribution of data. Its purpose is: to summarize in a single number the position or location of the data distribution

   • Ungrouped data
     • Quartiles
       • They are the three values ​​of the variable of a distribution that divide it into four equal parts, that is, 25% and 75%.
         • Deciles
           • They represent a position that divides the data set into 10 equal parts grouping them at 10, 20, 30, ... and 90.
     • Quintiles
       • They represent a position that divides the data set into 5 equal parts grouping them into 20, 40, 60 and 80 percent, which are represented by K1, K2, K3, K4.
         • Percentiles
           • They are the calculation of a position which is used to determine the value of the data under which the percentage is found.
             • Bibliographic references: Monroy. S.S. (2005). Descriptive statistics. Mexico, D.F., MX: National Polytechnic Institute. (pp56-79).
   • Grouped data
     • Quartiles
       • They divide the data into 4 parts, this allows us to determine the dispersion and the central tendency of the data.
         • Deciles
           • It is calculated with its certain formulas.
     • Quintiles
       • They are grouped data that are obtained with a formula.
         • Percentiles
           • It is calculated with its certain formulas.