In simple linear regression Y=a+bXY = a + bXY=a+bX, the least squares line based on nnn data points always passes through
(0,0)(0,0)(0,0)
(1n,1n)\left(\tfrac{1}{n}, \tfrac{1}{n}\right)(n1,n1)
(1,1)(1,1)(1,1)
None of the previous
