Tree Circumference and Height Listed below are the circumferences (in feet) and the heights

(in feet) of trees in Marshall, Minnesota (based on data from “Tree Measurements,” by Stanley Rice, American Biology Teacher, Vol. 61, No. 9). Is there sufficient evidence to support the claim of a linear correlation between circumferences and heights of trees? Why should there be a correlation?

Circumference 1.8 1.9 1.8 2.4 5.1 3.1 5.5 5.1 8.3 13.7 5.3 4.9 Height 21.0 33.5 24.6 40.7 73.2 24.9 40.4 45.3 53.5 93.8 64.0 62.7