Data classification: Determine whether the data are qualitative or quantitative. Explain briefly. 4. Telephone numbers in a directory Sampling Techniques: A college professor wants to determine the average age of students taking Statistics this semester. There are ten sections and the professor wants to sample the students to save some time. 5. Describe (not just mention) two different methods of sampling that could be used in this scenario. Explain how the sampling would be done for the method selected. Method-1: Method 2