What is the y-intercept of the least squares regression line for the following data?: (1,1) (2,5) (3, 10)
1 Answer
Oct 13, 2015
Explanation:
Entering these points into the calculator in stat mode yields :
Gradient : 4,5
y-intercept : -3,667
Hence the least squares line of best linear approximation through all these points has equation
Graphically :
graph{4.5x-3.667 [-22.8, 22.83, -11.4, 11.4]}