H2 Maths 6.1 - Conditional Probability via Tree Diagram
What you will learn
- Disease in 2% of the population; test sensitivity 90%, false positive rate 5%; find P(disease | positive).
- Tree gives joint probabilities: P(D and +) = 0.018, P(no D and +) = 0.049.
- Total probability of a positive: P(+) = 0.018 + 0.049 = 0.067, about 6.7%.
Continue H2 Maths Probability Formula Sheet | Conditional & Bayes
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