Mathematics (AS & A Level) · Feb / March 2022 · Paper 62 · Question 6
9709
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The question as text
In a game a ball is rolled down a slope and along a track until it stops. The distance, in metres, travelled by the ball is modelled by the random variable X with probability density function fx = D −kx −1 x −3 1 ≤x ≤3, 0 otherwise, where k is a constant.
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6(a)[1]
6(b)[3]
6(c)[3]
6(d)[4]
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