Question

us deaths attributable to smoking, 2005 - 2009 according to the graph, about of us deaths attributable to smoking are caused by lung cancer. about half of deaths are caused by lung cancer other cancer coronary heart disease diabetes mellitus copd 127,700 36,000 99,300 9,000 100,600

Explanation:

Step1: Calculate total deaths

First, find the total number of US deaths attributable to smoking by adding all - cause deaths: $127700 + 36000+99300 + 9000+100600=372600$.

Step2: Calculate percentage of lung - cancer deaths

To find the percentage of US deaths attributable to smoking that are caused by lung cancer, use the formula $\text{Percentage}=\frac{\text{Number of lung - cancer deaths}}{\text{Total deaths}}\times100\%$. So, $\frac{127700}{372600}\times 100\%\approx34\%$.

Step3: Identify the cause for about half of deaths

The number of deaths due to lung cancer is $127700$, and the number of deaths due to COPD is $100600$. The sum of lung - cancer and COPD deaths is $127700 + 100600=228300$, which is close to half of the total $372600$ deaths. So about half of deaths are caused by lung cancer and COPD.

Answer:

About 34% of US deaths attributable to smoking are caused by lung cancer. About half of deaths are caused by lung cancer and COPD.