Answer
a) iv, i, ii, iii, v
b) iv, iii, ii
Work Step by Step
a) The correlations are how close the dots are to a linear line. However, negative sloped come before positive slopes, so our order should be most linear negative slope, less linear negative slope, no visible slope, somewhat linear positive slope, and most linear positive slope (in general).
b) Of ii, iii, and iv, iv's points are closest to linear, and ii's are the least linear.