Measures of central tendency
In statistics, measures of central tendency are a group of mathematical technologies (ie, procedures or formulas) used for summarising data. These measures may also be known as averages, and typically refer to the following:
|The mid-range value in a distribution||mid-range|
|The most typical or frequent value in a distribution||mode|
|The value in the middle of the range once all values in the distribution are arranged in an ordinal manner||median|
|The value which is the most equidistant to all other values in the distribution||arithmetic mean|
Although these measures of central tendency inform about the average value in a distribution of scores, more complete information about the distribution can be obtained by complimenting those with their corresponding measures of dispersion.
Jose D PEREZGONZALEZ (2012). Massey University, Turitea Campus, Private Bag 11-222, Palmerston North 4442, New Zealand. (JDPerezgonzalez).
Want to know more?
- Khan Academy - The average
- Khan teaches about central tendency measures (mean, median and mode) on this video.
|Khan Academy (undated - embedded from YouTube on 27 April 2011)|