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Are events $Q$ and $S$ independent? Justify this.
Mathematics 9709 · AS & A Level · The Poisson distribution
The Poisson distribution — practice question
$Q$ is the event "Nicola throws two fair dice and obtains a total of $5$". $S$ is the event "Nicola throws two fair dice and gets one low score $(1, 2 \text{ or } 3)$ together with one high score $(4, 5 \text{ or } 6)$".
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A correct probability, such as $P(Q)=\frac{4}{36}$ or $P(S)=\frac{1}{2}$” …
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