Relative Frequency and Probability
Experimental and theoretical probability, relative frequency, two-way tables, multistage events, independence, and contingency tables.
Active lessons
4
Status
Active
Lesson flow
Learn -> Guided Practice -> Independent Practice -> Mastery Quiz
How to use this unit
- Start from lesson 1 and move through the pathway in order.
- Use guided practice before attempting independent practice.
- Mastery quizzes check whether the skill is ready for review or extension.
Unit pathway
Lesson pathway
4 of 4 active
Lesson 1
Probability Revision
Consolidate Year 11 probability foundations: list sample spaces, express probability as a fraction/decimal/percentage, apply the complementary rule P(A') = 1 − P(A), and find theoretical probability — preparation for multistage events and tree diagrams.
Lesson 2
Relative Frequency and Probability
Use relative frequency, experimental probability, simulations, and two-way tables to estimate and interpret probabilities.
Lesson 3
Multistage Events and Independence
Use tree diagrams and tables for two-stage events, apply P(A and B) = P(A) × P(B) for independent events, and distinguish with- and without-replacement scenarios.
Lesson 4
Expected Frequency and Contingency Tables
Calculate expected frequency using E = np, read and complete contingency tables, find probabilities from cell counts, and use probability to evaluate decisions.
Part of the Online Learning Package
Unit previews stay public, while individual lessons require active online learning access.