Drills
Counting every outcome an event contains before dividing by the total.
Author note — to cover
Events containing several outcomes, such as rolling a prime, drawing a vowel or picking a multiple of 3, counted carefully before dividing by the total; answers in fraction, decimal or percentage form. Both tiers. Exclude outcomes from two combined experiments (Diagrams topic) and the OR rule (Combined events). (P7)
- Fluency — direct questions on an event made of several outcomes, limited to this lesson's stated scope (4 questions).
- Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
- Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).
The test
—coming soon—