Which correlation coefficient indicates the strongest relation between two variables?

In 2010, women's pay was 81 percent of men's

Indicate whether the statement is true or false.

Which behavior pattern best defines "serial monogamy"?

A) Engaging in multiple sexual relationships at the same time B) Involvement in one exclusive relationship after another C) Having several sexual partners but one primary committed relationship D) Having one committed partner for life but not marrying or living together