(a)[4]
Use an approximating distribution to calculate the probability that, in a random sample of $1000$ adults from this country, fewer than $4$ of them have a degree in medicine.
(b)[2]
Justify the approximating distribution selected in part (a).
Mathematics 9709 · AS & A Level · The Poisson distribution
The Poisson distribution — practice question
In one country, 20540 adults from a population of 601200 hold a degree in medicine.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Calculate $\frac{20540}{6012300}=0.0034163$, and so $\times 1000 = 3.4163$.” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI