The systolic blood pressure dataset (in the third sheet of the spreadsheet linked above) contains the systolic blood pressure and age of 30 randomly selected patients in a medical facility.

What is the equation for the least square regression line where the independent or predictor variable is age and the dependent or response variable is systolic blood pressure?

y=( )x+( )

Patient 10 is 56 years old and has a systolic blood pressure of 154 mm Hg. What is the residual?

Is the actual value above, below, or on the line?

What is the interpretation of the residual?