Drills
Building tree diagrams and combining branch probabilities, with and without replacement.
Author note — to cover
- Fluency — completing branch probabilities so every fork sums to one, with replacement throughout (4 questions).
- Paths — multiplying along branches and adding the paths an event allows, as exact fractions (4 questions).
- Without replacement — second-stage branches that must change after the first pick, catching the copied first-stage fraction (4 questions).
The test
—coming soon—
Where to go next
This mixed review uses the methods from these learning pages: