Question

For which data set is a linear regression most reasonable

Answer 1

Do we have a model, or anything to go by?

Answer 2

A)a set of nine data pairs with a correlation coefficient r = –0.4

B)a set of five data pairs with a correlation coefficient r = 0.3

C)a set of four data pairs with a correlation coefficient r = –0.8

D)a set of six data pairs with a correlation coefficient r = 0.6