Relative Frequency and Probability
Sample spaces, probability scales, complements, relative frequency, experimental probability and two-way table probabilities.
Active lessons
7
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
7 of 7 active
Lesson 1
Outcomes, Sample Space and Probability
Use sample spaces, events, favourable outcomes, probability scales and complements in practical probability contexts.
Lesson 2
Relative Frequency and Experimental Probability
Calculate relative frequency from trial data and compare experimental results with theoretical probability.
Lesson 3
Two-Way Tables and Probability
Read two-way tables, row and column totals, and simple table probabilities from practical data.
Lesson 4
Venn Diagrams
Use two-circle Venn diagrams to count elements in the intersection, union and complement of two sets, and calculate probabilities from each region.
Lesson 5
Conditional Probability
Find P(A|B) by restricting the sample space to the given event B, using two-way tables and Venn diagrams to identify the correct denominator.
Lesson 6
Tree Diagrams
Construct tree diagrams for multi-stage probability problems, multiply along branches and add separate paths to find combined event probabilities with and without replacement.
Lesson 7
Probability Exam Practice
Practise mixed probability questions involving sample spaces, complements, relative frequency and two-way tables.
Part of the Online Learning Package
Unit previews stay public, while individual lessons require active online learning access.