The following table gives measurements of weight and shoe size for 10 people (including both men and women).
a. Construct a scatterplot for the data. Estimate or compute the correlation coefficient. Based on this correlation coefficient, would you conclude that January and July temperatures are correlated for these cities? Explain.

b. Notice that the first five cities in the table are in the Northern Hemisphere and the next five are in the Southern Hemisphere. How does this change your view of the correlation? Would you now conclude that January and July temperatures are correlated for these cities? Explain.

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Weight (pounds) 105 112 115 123 135 155 165 170 180 190 Shoe size 4.5 10 10 12