Chapter 1, Problem 9SE

SECTION EXERCISES

The data in the Table 1A were collected from one of the authors’ statistics classes. The column heads give the variable, and each of the other rows represents a student in the class. Refer to this table for Exercises 1.1-1.10, 1.19 and 1.20.

Coding Explain why the variable Male. In Table 1A, is categorical, even though its value are numbers. Often, it does not make sense, or is not even possible, to add the values of a categorical variable. Does it make sense for Male? If so, what does the sum represent?