Question

Is the residual plot shown a linear or non-linear model?

Answer 1

I would say Linear because there is no clear non linear pattern! alternatively, you could put the data into a spreadsheet and calculate the R value (pearson's coefficient) then see how strong the linearity is. In short, I would say Linear! hope that helps :)

Answer 2

Answer: non linear

Explanation:

It’s difficult to tell because the dots are big and the scale is too small, but the plot should be a decreasing function with negative concavity until x=70 aprox where there is an assyptote. Then, after x=70 we only have one point so we don’t know how it continues.