Mathematics 9709 · AS & A Level · Continuous random variables

Continuous random variables — practice question

For a butternut squash seed that is sown, the chance that it germinates is $0.86$, independently of all the other seeds. A market gardener sows $250$ of these seeds.
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Use a suitable approximation to determine the probability that more than $210$ germinate.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Calculate the mean value $\mu = 250 \times 0.86 = 215$” …

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