A researcher randomly selected several undergraduate students from UT and asked them the following questions: 1. Have you been fully vaccinated? (yes or no) 2. How frequently do you wear a mask on campus? (always, sometimes, or never) Her data is shown in the graph below. Mask Wearing by Vaccine Status Vaccinated? Yes No 0.0 0.2 0.4 0.6 0.8 1.0 Relative Frequency Always Never Sometimes Frequency of Mask Wearing How would you describe this data? [ Select ] What is the population for this data? [ Select ] What other graph could have displayed this same data? [ Select ]