1.7 How do you do online research? A study of 552 first-year college students asked about their favorite choice for doing online research. Possible choices were “Google or Google Scholar,” “Library database or website,” “Wikipedia or online encyclopedia,” and “Other.” Names of the students were not recorded, but the students were numbered from 1 to 552 in the data file. The researchers also recorded age, sex, and major area of study for each student.

1. (a) What are the cases?

2. (b) Identify the variables and their possible values.

3. (c) Classify each variable as categorical or quantitative. Be sure to include at least one of each.

4. (d) Was a label used? Explain your answer.

5. (e) Summarize the key characteristics of your data set.