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Year 10 Maths - 10 Probability

The Addition Rule

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Questions
Question 1
42091

Two events, \(A\) and \(B\) are such that:

\(P_{r}(A)=0.8,\,P_{r}(B)=0.7\) and \(P_{r}(A\cap  B)=0.6\). Find \(P_{r}(A \cup B)\)

\(0.9\)

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