position measures

position measures

1. characteristics

   • calculation of quartiles for grouped data
     • First of all we look for the class where it is located in the table of accumulated frequencies

2. parameters

   • divide a data set into groups with the same number of individuals.
     • To calculate the position measurements it is necessary that the data be ordered from smallest to largest.

3. classification

   • quartiles calculation
     • 1- order the data from smallest to largest
       • 2- We look for the place occupied by each quartile by means of the expression
         • odd number of data
         • even number of data
   • The deciles are the nine values that divide the data series into ten equal parts.
     • The deciles give the values corresponding to 10%, 20%... and 90% of the data.
   • The percentiles are the 99 values that divide the data series into 100 equal parts.
     • The percentiles give the values corresponding to 1%, 2%... and 99% of the data.

4. are statistical indicators that make it possible to summarize the data in a single data set,

   • or to divide its distribution into intervals of the same size.
     • or to divide its distribution into intervals of the same size.

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