Question: 2.4.19 ( Weibull () distribution ) Consider, for > 0 fixed, the function given by f ( x ) = x 1 e x for

2.4.19 (Weibull() distribution) Consider, for > 0 fixed, the function given by

f(x) = x1ex for 0 < x < and 0 otherwise. Prove that f is a density function.

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