Pearson Edexcel IAL Mathematics S1.3.4 Sum & product laws
Practise applying sum and product laws with tree diagrams, Venn diagrams and sampling with or without replacement.
- Syllabus
- First assessment 2019
- Course
- Mathematics YMA01
- Level
- AS
Exam points
- complete tree diagrams using branch probabilities from the wording
- calculate at least one or exactly one outcomes using products and complements
- apply replacement or non-replacement rules when multiplying branch probabilities
S1.3.4 - Sum and product laws question 1
The histogram shows the times taken, in seconds, by each of 260 people to complete a puzzle.
Estimate the probability that all 3 of their times are less than 36 seconds.
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