Mathematics (AS & A Level) · May / June 2017 · Paper 71 · Question 4
9709
As printed in the paper
The question as text
x fx 0 5 10 The time, X minutes, taken by a large number of runners to complete a certain race has probability density function f given by fx = t k x2 5 ≤x ≤10, 0 otherwise, where k is a constant, as shown in the diagram.
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Show the answer and mark scheme
4(i)[1]
4(ii)[3]
4(iii)[3]
4(iv)[2]
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