estimated_standard_deviation
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionLast revisionBoth sides next revision | ||
estimated_standard_deviation [2020/12/05 19:06] – [수학적 증명] hkimscil | estimated_standard_deviation [2023/09/13 10:58] – hkimscil | ||
---|---|---|---|
Line 11: | Line 11: | ||
\begin{eqnarray*} | \begin{eqnarray*} | ||
- | \hat{\sigma}^{2} | + | \hat{\sigma}^{2} |
\end{eqnarray*} | \end{eqnarray*} | ||
Line 50: | Line 50: | ||
| | | SS< | | | | SS< | ||
- | 이렇게 얻은 SS< | + | 이렇게 얻은 SS< |
Line 487: | Line 487: | ||
& = & \dfrac{1}{n} E \left[\sum{(X_{i}-\overline{X})^{2}} \right] \\ | & = & \dfrac{1}{n} E \left[\sum{(X_{i}-\overline{X})^{2}} \right] \\ | ||
& = & \dfrac{1}{n} (n-1) \sigma^{2} \\ | & = & \dfrac{1}{n} (n-1) \sigma^{2} \\ | ||
- | & = & (\dfrac{n-1}{n}) \sigma^{2} \\ | + | & = & \left(\dfrac{n-1}{n}\right) \sigma^{2} \\ |
\end{eqnarray*} | \end{eqnarray*} | ||
estimated_standard_deviation.txt · Last modified: 2023/09/13 11:00 by hkimscil