. Grade 8, Illustrative icon

What's Your Favorite Subject?

Illustrative MathematicsVaries

Either row percentages or column percentages are appropriate for the solution, since there is no clear explanatory/response relationship between the variables. Whether the student sees a strong association or not is less important than whether his or her answer uses the data appropriately and understands that an association means that the distribution of favorite subject is different for 7th graders and 8th graders. Another approach is to observe that 39% of the students are 7th graders. If grade is not associated with favorite subject, you would expect about 39% of the students picking a particular subject as their favorite to be 7th graders.

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