Refer to the data on garbage in Exercise 3.31.
(a) Calculate the correlation coefficient between the amount of garbage in millions of tons and the population size in millions.
(b) Based on your calculation in part (a), give the correlation coefficient between the amount of garbage in pounds and population size in number of persons. Explain your answer. [Recall that there are 2000 pounds in a ton so (number of pounds) = 2000 × (number of tons).]
In Exercise 3.31

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ear 1960 1970 1980 1990 2000 2010 Garbage 88 121 152208 243 250 millions of tons) Population 179 203 227 249 282 309 millions)