Aset of data points has a line of best fit of y=-0.2x+1.8. what is the residual for the point (5,1)?

Hello!

The residual for the point (5,1) is

To calculate residuals, we need to calculate the value of the line of best fit in the same x coordinate as the point we want to study to know the Predicted-y-value. To do so, we make the substitution of 5 into the equation:



Now we determine the residual with the following equation:



Have a nice day!

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.