Question
The Behavioral Risk Factor Surveillance System (BRFSS) is the world's largest ongoing telephone survey system. It is a serial survey that has tracked health condidtions
The Behavioral Risk Factor Surveillance System (BRFSS) is the world's largest ongoing telephone survey system. It is a serial survey that has tracked health condidtions and risk behaviors in the United States each year since 1984. According to this survey, the percentage of Americans who considered thrir health as excellent was 24.7 in 1995 but 20.0 in 2008. The annual decrease in the percentage was 1.6. Why does the health of Americans appear to be declining?
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The decrease in the percentage of Americans who considered their health as excellent from 247 in 1995 to 200 in 2008 could be attributed to various fa...
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OpenIntro Statistics
Authors: David Diez, Mine Çetinkaya-Rundel, Christopher Barr
4th Edition
1943450072, 978-1943450077
