7th Grade · Statistics & Probability
Tree Diagram
7.SP.C.8
Definition
A diagram showing all possible outcomes of a multi-step probability experiment using branches. The total outcomes equal the product of the choices at each step.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- Flipping a coin twice: 2 × 2 = 4 outcomes (HH, HT, TH, TT).
- Flip a coin then roll a die: 2 × 6 = 12 total outcomes.
Key rule
Multiply the branches at each level to find the total number of outcomes.
Memory hook
Branch out each step, then count the paths.