The file lists the calorics and sugar, in grams, in one serving of seven breakfast cereals:

a. Compute the covariance.
b. Compute the coefficient of correlation.
c. Which do you think is more valuable in expressing the relationship between calories and sugar-the covariance or the coefficient of correlation? Explain.
d. Based on (a) and (b), what conclusions can you reach about the relationship between calories and sugar?

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Calories Sugar Cereal Kellogg's All Bran Kellogg's Corn Flakes Wheaties Nature's Path Organic 30 100 100 110 Multigrain Flakes Kellogg's Rice Krispies Post Shredded Wheat 130 190 Vanilla Almond 200 10 Kellogg's Mini Wheats