Which of these is a coefficient of association between two ordinal variables?

In 1765, Parliament required colonists to purchase a small stamp to affix to legal and other documents. This was known as the

A) Proclamation of 1765. B) Mayflower Compact. C) stamp tax. D) U.S. Postal Service. E) supremacy clause.

Exemptions to sales taxes tend to make them less ________

A. intensive B. progressive C. regressive D. exhaustive