Calories in beer. Refer to the previous two exercises. The data set also gives the calories per 12 ounces of beverage.

(a) Analyze the data and summarize the distribution of calories for these 86 brands of beer.

(b) In the previous exercise you identified one brand of beer as an outlier. To what extent is this brand an outlier in the distribution of calories? Explain your answer.

(c) The distribution of calories suggests that there may be two groups of beers, which might be marketed differently. Examine the data carefully and describe the characteristics of the two groups.