The graphs show some trends in deaths due to cancer in the United States. Study the graphs and answer these questions.

1. How are the two graphs different from each other?

    

    

2. Name the variable plotted on the x-axis of the graphs. What is the y variable?

    

    

3. What is the range of years included on the graphs?

    

    

4. Approximately what was the death rate for U.S. men:

   a. from lung cancer in 1960?

   b. from [prostate] cancer in 1980?

   c. from stomach cancer in 1990?

5. Approximately what was the death rate for U.S. women:
   a. from lung cancer in 1960?

   b. from [breast] cancer in 1990?

   c. from stomach cancer in 1990?

6. In which year (approximately) was the death rate highest for:
   a. women from [ovarian] cancer?

   b. men from stomach cancer?

   c. men from lung cancer?

   d. women from lung cancer?

    

    

7. The death rate from which form(s) of cancer increased from 1930 to 1990? The rate for which form(s) decreased in that time period? Give separate answers for men and women.

    

    

8. The death rate for which form of cancer increased the most from 1930 to 1990? Which form decreased the most?

    

    

9. Can you think of some reasons why deaths from some forms of cancer increased and some decreased from 1930 to 1990? (See “Causes and Risk Factors” in See It Now Part I: Interpreting a Graph Module)

    

    

10. What are some reasons that death rates are different for men and women for the same forms of cancer? (See “Causes and Risk Factors” in See It Now Part I - Interpreting a Graph.)