Mathematics (AS & A Level) · May / June 2025 · Paper 55 · Question 2
9709
As printed in the paper
The question as text
The heights of trees in a certain forest are classified as tall, medium or small. The heights can be modelled by a normal distribution with mean 20 m and standard deviation 5 m. Trees with a height of less than 14 m are classified as small.
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2(a)[4]
2(b)[3]
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