Coffee and deforestation. Coffee is a leading export from several developingcountries

Chapter 0, Problem 4.8

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Coffee and deforestation. Coffee is a leading export from several developingcountries. When coffee prices are high, farmers often clear forest to plant morecoffee trees. Here are five years data on prices paid to coffee growers in Indonesia(a) Make a scatterplot. Which is the explanatory variable? What kind of patterndoes your plot show?(b) Find the correlation r step-by-step. First find the mean and standard deviationof each variable. Then find the five standardized values for each variable. Finally,use the formula for r. Explain how your value for r matches your graph in (a).(c) Enter these data into your calculator or software and use the correlationfunction to find r. Check that you get the same result as in (b), up to roundofferror.