This Instructional Activity is a part of the Lesson 13, Unit 6, Grade 8. In this example, students learn that they can also use row and column totals to calculate relative frequencies. This concept provides a foundation for future work with conditional relative frequencies in Algebra I. English language learners may need a reminder about the difference between columns and rows. A column refers to a vertical arrangement, and a row refers to a horizontal arrangement in the table. Keeping a visual aid posted that labels these parts aids in comprehension.