Mathematics (AS & A Level) · May / June 2020 · Paper 61 · Question 6
9709
As printed in the paper
The question as text
The length of time, T minutes, that a passenger has to wait for a bus at a certain bus stop is modelled by the probability density function given by ft = T 3 400020t −t2 0 ≤t ≤20, 0 otherwise.
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Show the answer and mark scheme
6(a)[1]
6(b)[1]
6(c)[3]
6(d)[2]
6(e)[3]
6(f)[1]
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