High school students from grades 9–10 and 11–12 were asked to choose the kind of band to have play at a school dance: rap, rock, or country. Their choices were as follows: Grades 9–10—Rap: 40; Rock: 30; Country: 55 Grades 11–12—Rap: 60; Rock: 25; Country: 35 Which of the following is a correct two-way frequency table for the data? Band preference for school dance Rap Rock Country Row totals Grades 9–10 0. 28 0. 21 0. 38 0. 86 Grades 11–12 0. 41 0. 17 0. 24 0. 83 Column totals 0. 69 0. 38 0. 62 1 Band preference for school dance Rap Rock Country Row totals Grades 9–10 0. 40 0. 55 0. 61 0. 86 Grades 11–12 0. 60 0. 45 0. 39 0. 83 Column totals 1 1 1 1 Band preference for school dance Rap Rock Country Row totals Grades 9–10 40 30 55 125 Grades 11–12 60 25 35 120 Column totals 100 55 90 245 Band Preference for School Dance Rap Rock Country Row totals Grades 9–10 0. 32 0. 24 0. 44 1 Grades 11–12 0. 50 0. 21 0. 29 1 Column totals 0. 69 0. 38 0. 62 1.
