Question: 3.21 Consider the density function f(x) = k x, 0 x < 4, 0, elsewhere. (a) Evaluate k. (b) Find F(x) and

3.21 Consider the density function f(x) =



k

√

x, 0 ≤ x < 4, 0, elsewhere.

(a) Evaluate k.

(b) Find F(x) and use it to evaluate P(3 < X < 4).

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