Measures of central Tendency

Measures of central Tendency

1. Is a value at the center or middle of a data set.

   • Arithmetic mean
     • Set of data is the measure of center found by adding the data values and dividing the total by the number of data values.
   • Median
     • Is the measure of center that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude.
   • Mode
     • Is the value that occurs with the greatest frequency
       • Bimodal
         • When two data values occur with the same greatest frequency
       • Multimodal
         • When more than two data values occur with the same greatest frequency
       • No mode
         • When no data value is repeated
   • Midrange
     • Is the measure of center that is the value midway between the maximum and minimum values in the original data set.

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