For Exercises 2.1 and 2.2, pages 64–65; for 2.3 and 2.4, see page 65; for 2.5 and 2.6, pages 66–67; and for 2.7, see page 68.

Question 2.12

2.12 Brand-to-brand variation in a product

beer

Beer100.com advertises itself as “Your Place for All Things Beer.” One of their “things” is a list of 175 domestic beer brands with the percent alcohol, calories per 12 ounces, and carbohydrates (in grams).4 In Exercises 1.56 through 1.58 (page 36), you examined the distribution of alcohol content and the distribution of calories for these beers.

  1. Give a brief summary of what you learned about these variables in those exercises. (If you did not do them when you studied Chapter 1, do them now.)
  2. Make a scatterplot of calories versus percent alcohol.
  3. Describe the form, direction, and strength of the relationship.
  4. Are there any outliers? If yes, identify them by name.

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