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Find the probability that at least $2$ of these newspapers are delivered to houses with numbers greater than $14$.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
On one side of a street, the $12$ houses are labelled with even numbers from $2$ up to $24$. On Monday, a free newspaper is delivered to $3$ distinct houses chosen at random from those $12$.
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This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Rewriting $P(\text{at least }2)$ as $P(2,3)$ or $1-P(0,1)$” …
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