A 5m 60cm vertical pole cast a shadow of 3m 20cm long. Find at the same time the length of a shadow cast by another pole 10m 50cm high.

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.