The class ranks of 20 students selected for a survey about cafeteria food at a high school are shown in the table below. Sophomore Freshman Freshman Freshman Sophomore Sophomore Sophomore Freshman Sophomore Sophomore Sophomore Junior Sophomore Senior Freshman Junior Sophomore Freshman Senior Senior Use these data to complete each of these questions. (a) Complete the frequency/relative frequency table. Class Rank Freshman Sophomore Junior Senior Frequency Relative Frequency, in percent % % % %