The band leader is recording the number of students in the seventh and eighth grades who play flute and clarinet. Which describes the variables in the two-way table?Band Assignments FluteClarinetTotal7th Grade1924438th Grade221840Total

A two-way table organizes data by two variables. Here, the rows distinguish grade number (seventh or eighth), and the columns distinguish type of instrument (flute or clarinet). The totals summarize the data; they are not a variable. Therefore, the correct choice is D, grade number and type of instrument.

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