IB Maths AI 4.5 – Introduction to Probability Notes
Build students’ probability understanding with these structured notes for IB Mathematics: Applications and Interpretation SL Topic 4.5. The resource introduces core vocabulary and connects theoretical probability, experimental probability, and expected value through guided examples and practice.
Topics covered- Trials, outcomes, sample spaces, events, and equally likely outcomes.
- Calculating theoretical probabilities and using complementary events.
- Experimental probability and relative frequency.
- Determining the expected number of occurrences using E = np.
The student copy includes guided notes and practice questions; the teacher copy provides completed solutions and explanations. Use these materials for guided instruction, independent review, or exam preparation.
Pair the notes with the IB Maths AI SL 4.5 Introduction to Probability slide deck and IB Math AI Worksheet SL 4.5 Intro to Probability for a coordinated lesson and practice set.
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