Shortly before Valentine's Day in 1999 , a newspaper article was printed with the headline "Marriage makes for healthier, longer life, studies show." The headline was based on studies that showed that married persons live longer and have lower rates of cancer, heart disease, and stroke than do those who never marry. 33 Use the language of statistics to discuss the headline. Use a schematic diagram similar to Figure 7.4 .1 or Figure 7.4 .2 to support your explanation of the situation.