Question

The least-squares regression equation computed from the sample set of data was \hat{y}=0.4069-0.7765x. Given this equation, what is the correlation between x = number of letters with dominant hand and y = number of letters with nondominant hand? Submit your answer rounded to four decimal places.

Answer 1

I don't want to add up these vertical distances because some will be positive and some negative. Instead, I will add up this vertical distance squared such that:

So, let me assume that my best fit linear function has the form: