The regression line for the given data is y 2097x0552 Detemi

The regression line for the given data is y 2.097x-0552 Detemine the residual of a data point or which xo 0 and y-1 5-341 -1-20 23 4 -10 -891-26136 OC-0552 Satisfactory·ard heeds desoptivo-perhaps as srp\" as Good

Solution

a)

The residual for an (x,y) pair in your data is the difference between the y value in the pair, and the y value predicted by the regression line. For (0,-1), the y value on the regression line for x=0 is (2.097*0 - 0.552), so the residual is:

-1 - (2.097*0 - 0.552) = -0.448 --------> Correct answer: Option A

b) Correlation coefficient calculated with excel: 0.847-------> Correct answer: Option C