Mathematics (AS & A Level) · May / June 2023 · Paper 63 · Question 7
9709
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x fx O _ 1 π _ 2 π A B A random variable X has probability density function f, where the graph of y = fx is a semicircle with centre 0, 0 and radius _ 2 π , entirely above the x-axis. Elsewhere fx = 0 (see diagram).
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7(a)[2]
7(b)[6]
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