Since Exercises use real data, they are best answered with technology.
Lung Cancer and Smoking The following table gives the crude male death rate for lung cancer in 1950 and the per capita consumption of cigarettes in 1930 in various countries. (Source: U.S. Dept. of Health, Education, and Welfare)
Country | Cigarette consumption (per capita) | lung cancer deaths (per million males) |
Norway | 250 | 95 |
Sweden | 300 | 120 |
Denmark | 350 | 165 |
Australia | 470 | 170 |
(a) Use the method of least-squares to obtain the straight line that best fits these data.
(b) In 1930, the per capita cigarette consumption in Finland was 1100. Use the straight line found in part (a) to estimate the male lung cancer death rate in Finland in 1950.
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