SOLUTION: A data set has the following points: (0,2), (4,1), (6,0) The slope of the linear regression line is -0.32. Find the y-intercept of the linear regression.

Algebra ->  Probability-and-statistics -> SOLUTION: A data set has the following points: (0,2), (4,1), (6,0) The slope of the linear regression line is -0.32. Find the y-intercept of the linear regression.      Log On


   

Question 464040: A data set has the following points:
(0,2), (4,1), (6,0)
The slope of the linear regression line is -0.32. Find the y-intercept of the linear regression.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
The y-intercept a is given by the formula
a+=+%28sum%28y%29+-+b%2Asum%28x%29%29%2FN. Here, b = -0.32, N = 3, sum%28y%29+=+3, and sum%28x%29+=+10.
==> a+=+%28sum%28y%29+-+b%2Asum%28x%29%29%2FN+=+%283-%28-0.32%29%2A10%29%2F3+=+2.07.