LernStats
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Glossary
Clicking on the glossary keywords on the right will display a definition of the word in this box.
Please note that the glossary definitions at present are available in german language only.
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Measures of Dispersion
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LernStats
(Chapter 4 - Page 8 / 9)
Summary
Click on the buttons to return to the chapter for the respective measure of variability.
Ordinal scale
The
Range
is only a very rough indicator;, specially with large sample sizes.
Farbe
Quartile
and
Centile
are of importance when
cannot be calculated.
Interval- and Ratio scale
Die
average deviation
is a less helpful indicator than
Variance
the mean square deviation gives more emphasis to values that differ strongly from its mean.
The benefit of the
standard deviation
is, that we can talk about hte deviation in the scale measured (e.g. in years, not in "years squared").
LernStats
Glossary
Textbook
Imprint