(a)[3]
Find the probability that a randomly selected adult from this country has a height greater than 1.93 m.
(b)[5]
Find the mean and standard deviation for this distribution.
Mathematics 9709 · AS & A Level · The normal distribution
The normal distribution — practice question
In one country, adults’ heights follow a normal distribution with mean 1.64 m and standard deviation 0.25 m.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate standardisation $P\left(Z>\frac{1.93-1.64}{0.25}\right)$” …
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