In this lesson, students are introduced to relative frequency tables, which are created by dividing each value in a two-way table by the total number of responses in the entire table or the total number of responses in a row or a column. For example, there may be 33 students who list math as their favorite subject in grade 9. These 33 students may represent 7% of the entire school, 21% of 9th graders, or 31% of students in the school who listed math as their favorite subject. The activities focus on interpreting the different types of relative frequency tables and using the values to interpret data in context.

Technology isn't required for this lesson, but there are opportunities for students to choose to use appropriate technology to solve problems (MP5). We recommend making technology available.