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08 Nov 2025, 02:04
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Epidemiologist: A study of residents in 116 of our nation's cities found that, on average, the incidence of cardiovascular disease was significantly higher in residents of the cities whose air was more polluted with soot particles. This shows that reducing soot pollution in those cities would lower the risk of cardiovascular disease for the residents.
Which of the following, if true, would most weaken the epidemiologist's argument?
a.A high proportion of residents in the cities whose air is more heavily polluted with soot particles have lifestyles that lower the risk of cardiovascular disease.
b.The study failed to measure the incidence of cardiovascular disease in rural areas where there is little or no soot pollution.
c.On average, among the 116 cities, the residents of cities whose air has less soot pollution have diets much less likely to cause cardiovascular disease.
d.After soot pollution in one city was dramatically reduced, the incidence of cardiovascular disease in that city remained above the national average.
e.Reducing soot pollution would also involve reducing several other forms of air pollution that contribute more significantly to cardiovascular disease.
Which of the following, if true, would most weaken the epidemiologist's argument?
a.A high proportion of residents in the cities whose air is more heavily polluted with soot particles have lifestyles that lower the risk of cardiovascular disease.
b.The study failed to measure the incidence of cardiovascular disease in rural areas where there is little or no soot pollution.
c.On average, among the 116 cities, the residents of cities whose air has less soot pollution have diets much less likely to cause cardiovascular disease.
d.After soot pollution in one city was dramatically reduced, the incidence of cardiovascular disease in that city remained above the national average.
e.Reducing soot pollution would also involve reducing several other forms of air pollution that contribute more significantly to cardiovascular disease.
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08 Nov 2025, 05:20
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Please search before posting: https://gmatclub.com/forum/epidemiologi ... 16968.html
P.S. The topic is locked and archived.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Critical Reasoning (CR) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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