The continuous random variable X takes values in the interval 0 x 5 only. For
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The continuous random variable X takes values in the interval 0 ≤ x ≤ 5 only. For 0 ≤ x ≤ 5 the graph of its probability density function f consists of two straight line segments, as shown in the diagram.
a. Find k and show that f is given by
b. The random variable Y is given by Y = X2.
i. Find the probability density function of Y.
ii. Show that E(Y) = 10.25.
iii. Show that the median of Y is the square of the median of X.
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Related Book For
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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