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?


A)

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


B)

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


C)

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


D)

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