Quartiles

Reference Topics 14-3

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This site is a glossary of statistical terms:
http://www.stat.berkeley.edu/users/stark/SticiGui/Text/gloss.htm

This excellent site presents a tutorial over several measures of dispersion: range, percentile scores, quartile scores, variance, standard deviation, and z-scores.
http://simon.cs.vt.edu/SoSci/converted/Dispersion_I/activity.html… See the whole entry

Section 14.2: Descriptive Statistics

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14.2 Outline
  1. Measures of Central Tendency
    1. mean
    2. median
    3. mode
    4. weighted mean
  2. Measures of Position
    1. quartiles
    2. deciles
    3. percentiles
  3. Measures of Dispersion
    1. range
    2. boxplot
    3. variance of the population
    4. variance of a random sample
    5. standard deviation

 

14.2 Essential Ideas

Averages or measures … See the whole entry