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Sum of squares of deviations |
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| Authors: | Josef Bukac Jakub Sulc |
| Institution: | 1. Jaromer-Josefov, Czech Republic;2. Hradec Kralove, Czech Republic |
| Abstract: | The question is whether or not we or any student are allowed to define a measure of variability in some other way that is not written in textbooks and officially approved. We compare the sum of squares of all deviations against the usual sum of squares of deviations from the mean. |
| Keywords: | teaching differences squared mean sum of squares variance |