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Mathematics, 22.01.2022 14:00 Anshuman2002
High school students from grades 9β10 and 11β12 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 9β10βRap: 40; Rock: 30; Country: 55 Grades 11β12βRap: 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 9β10 0. 28 0. 21 0. 38 0. 86 Grades 11β12 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 9β10 0. 40 0. 55 0. 61 0. 86 Grades 11β12 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 9β10 40 30 55 125 Grades 11β12 60 25 35 120 Column totals 100 55 90 245 Band Preference for School Dance Rap Rock Country Row totals Grades 9β10 0. 32 0. 24 0. 44 1 Grades 11β12 0. 50 0. 21 0. 29 1 Column totals 0. 69 0. 38 0. 62 1.
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High school students from grades 9β10 and 11β12 were asked to choose the kind of band to have play a...
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