Answer:
0.3.
Step-by-step explanation:
The residual of a data point is equal to the observed value minus the predicted value. (Stat Trek)
What's the predicted y-value of a point with [tex]x = 5[/tex] based on this best-fit regression line?
[tex]y = -0.2\times 5 + 1.7 = 0.7[/tex].
The observed value here is [tex]y = 1[/tex]. As a result, the residual for this point is [tex]1 - 0.7 = 0.3[/tex].
