8th Grade · Statistics & Probability
Two-Way Table
8.SP.A.4
Definition
A table that displays counts of data classified by two categorical variables, with inner cells showing combinations and margins showing row and column totals.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- Rows for 'Likes Dogs/Dislikes Dogs', columns for 'Likes Cats/Dislikes Cats'.
- Inner cells are joint counts; edges are marginal totals.
Key rule
A two-way table sorts data by two categorical variables at once.
Memory hook
Counts organized by two categories.