Question

statistics question

Answer 1

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? (2 points)



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

Answer 2

stat isn't my thing sorry pups

Answer 3

It's:
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

Answer 4

thank you, ik it is impossible to explain it, but can u tell me why its that? xD

Answer 5

I can try. One sec.