Mamadou's math teacher plots student grades on their weekly quizzes against the number of
hours they say they study on the pair of coordinate axes and then draws the line of best fit.
Calculate the residual for the data point that corresponds to 1.5 hours of study and a score of 61 points.

Mamadous math teacher plots student grades on their weekly quizzes against the number ofhours they say they study on the pair of coordinate axes and then draws class=