Question: A random sample of size n = 18 is taken from the distribution with pdf f(x) = 1 x/2, 0 x 2.

A random sample of size n = 18 is taken from the distribution with pdf f(x) = 1 − x/2, 0 ≤ x ≤ 2.
(a) Find μ and σ2.
(b) Find P(2/3 ≤ X ≤ 5/6), approximately.

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