Grade 8 · Data & Probability
Probability — Two Independent Events
Compound probability multiplies: the chance of flipping heads AND rolling a 4 is 1/2 × 1/6 = 1/12. Tree diagrams and tables make all possible outcomes visible. Students discover that listing the sample space and counting is always a valid strategy — the formula just makes counting faster.
LESSON VIDEO
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Lesson video
A short walkthrough to play in class or assign for flipped/at-home viewing.
WHAT STUDENTS WILL LEARN
✓Calculate the probability of two independent events using multiplication
✓Construct sample spaces using lists, tables, and tree diagrams
✓Compare theoretical and experimental probability for compound events
✓Solve problems involving 'and', 'or', and 'not' with independent events