Answer to Question #220932 in Statistics and Probability for Irfan
If you want to fit a linear regression line y=a+bx from the above data, then what is the value of 'a'?
1
2021-07-28T06:50:00-0400
xˉ=n∑ixi
yˉ=n∑iyi
SSxx=∑i(xi−xˉ)2=∑ixi2−n(xˉ)2
SSyy=∑i(yi−yˉ)2=∑iyi2−n(yˉ)2
SSxy=∑i(xi−xˉ)(yi−yˉ)=∑ixiyi−nxˉyˉ
b=SSxxSSxy
a=yˉ−bxˉ
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