Statistics - What is this called in English?
Name:
Anonymous
2011-02-07 9:55
Sp=\sqrt{\frac{\sum_{i=1}^{n}(x_{i}^{2})-\frac{\sum_{i=1}^{n}(x_{i})^2}{n}+\sum_{i=1}^{m}(y_{i}^{2})-\frac{\sum_{i=1}^{m}(y_{i})^2}{m}}{n+m-2}}
What is this thing called in English? Is it variance?
Name:
Anonymous
2011-02-07 9:55
\sqrt{\frac{\sum_{i=1}^{n}(x_{i}^{2})-\frac{\sum_{i=1}^{n}(x_{i})^2}{n}+\sum_{i=1}^{m}(y_{i}^{2})-\frac{\sum_{i=1}^{m}(y_{i})^2}{m}}{n+m-2}}
Eh.
Name:
Anonymous
2011-02-07 9:56
Sp=\sqrt{\frac{\sum_{i=1}^{n}(x_{i}^{2})-\frac{\sum_{i=1}^{n}(x_{i})^2}{n}+\sum_{i=1}^{m}(y_{i}^{2})-\frac{\sum_{i=1}^{m}(y_{i})^2}{m}}{n+m-2}}
Name:
Anonymous
2011-02-07 9:56
Are you serious. D=
Name:
Anonymous
2011-02-07 9:59
Last attempt at getting it working:
\TeX Sp=\sqrt{\frac{\sum_{i=1}^{n}(x_{i}^{2})-\frac{\sum_{i=1}^{n}(x_{i})^2}{n}+\sum_{i=1}^{m}(y_{i}^{2})-\frac{\sum_{i=1}^{m}(y_{i})^2}{m}}{n+m-2}}
Name:
Anonymous
2011-02-08 14:58
>>1
Wrong question
What is this thing?
Fix'd