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regression [2019/12/06 08:24] hkimscilregression [2019/12/06 08:25] hkimscil
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 간혹, 다른 교재를 보면,  간혹, 다른 교재를 보면, 
  
- $b = r * \displaystyle \frac{s_{Y}}{s_{X}}$ +$$b = r * \displaystyle \frac{s_{Y}}{s_{X}} $$
  
 와 같이 나타나는데 이 둘은 같은 의미를 갖는다. 와 같이 나타나는데 이 둘은 같은 의미를 갖는다.
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 r & = & \displaystyle \frac{SP}{\sqrt{SS_X SS_Y}}\text{,}\quad\text{therefore} \\ r & = & \displaystyle \frac{SP}{\sqrt{SS_X SS_Y}}\text{,}\quad\text{therefore} \\
 SP & = & r * \displaystyle \sqrt{SS_X SS_Y} \quad \text{and} \\ SP & = & r * \displaystyle \sqrt{SS_X SS_Y} \quad \text{and} \\
 +\\
 b & = & \displaystyle \frac{SP}{SS_X} \\ b & = & \displaystyle \frac{SP}{SS_X} \\
 & = & \displaystyle \frac{r * \sqrt{SS_X SS_Y}}{SS_X}  \\ & = & \displaystyle \frac{r * \sqrt{SS_X SS_Y}}{SS_X}  \\
regression.txt · Last modified: 2023/05/24 08:53 by hkimscil

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