Position Measurements

Position Measurements

1. Definition

   • They are measures that determine a position within the distribution of the data allowing to summarize the data in a single one and serve to measure and to divide

2. Non-central position measurements

   • serve to divide the set of statistical data into equal intervals
     • Quartiles
       • are the three values that divide a set of data ordered into four equal parts
     • Quintiles
       • They are four values that divide a set of data ordered into five equal parts.
     • Deciles
       • There are nine values that divide a set of data ordered into ten equal parts.
     • Percentiles
       • They are the values that divide a set of data ordered into one hundred equal parts.

3. Measures of central tendency

   • indicate the central value of a distribution, they serve to find a representative value of the center of a dataset.
     • Median
       • is the average value of all data sorted from lowest to highest.
         • depends on whether the total number of data is even or odd
     • Fashion
       • is the value of the dataset that has the highest absolute frequency, that is, the mode is the most repeated value of a dataset.
         • unimodal
         • bimodal
         • multimodal
     • Medio
       • To calculate the average, all the values must be added together and then divided by the total number of observations.