Mathematics, 05.11.2019 03:31 lala1196

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?

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