Question

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 35; Rock: 25; Country: 60 Grades 11–12: Rap: 55; Rock: 30; Country: 40 Which of the following is a correct two-way frequency table for the data?

Answer 1

The appropriate two-way frequency table for the time will like the following:

RAP ROCK COUNTRY TOTAL

Grades 9-10 40 30 55 125

Grades 11-12 60 25 35 120

TOTAL 100 55 90 245

The sum of the column total and the row total is equal.

125 + 120 = 100 + 55 + 90

245 = 245