Chapter 1.4, Problem 17E

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. Figure 13 shows the least-squares line for the data. (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

Per capita cigarette consumption

Figure 13

(a) Obtain the equation of the line in Fig. 13.

(b) In 1930, the per capita cigarette consumption in Finland was 1100. Use the equation found in part (a) to estimate the male lung cancer death rate in Finland in 1950.