Consider a fitted regression equation y = 13.7x - 2.3 where y is measured in metres. The fitted equation is based on n observations where the first observation is (x, y) =
(4.1, 50.1). What is the residual corresponding to the first observation?
O cannot answer without knowing the sample size n
O cannot answer without knowing the sample means for x and y
both A and B
0 3.77 metres
-3.77 metres
0 3.77
-3.77
none of the above