Question: 9.33. For the data for OECD nations in Table 3.11 on page 62, use software to construct a scatterplot relating y = carbon dioxide emissions

9.33. For the data for OECD nations in Table 3.11 on page 62, use software to construct a scatterplot relating y = carbon dioxide emissions and x = GDP.

(a) Based on this plot, identify a point that may have large influence in determining the correlation. Show that the correlation drops from 0.64 to 0.41 if you remove this observation from the data set.

(b) Suppose you constructed this plot using UN data for all data, rather than only the highly economically advanced nations that form the OECD. Would you expect the correlation to be weaker, about the same size, or stronger?

Why?

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