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| rev | Admin | (Created page with "'''Solution: C''' <math display = "block"> \begin{align*} \operatorname{E}[X] = \int_{1}^{\infty} x \frac{p-1}{x^p} dx &= (p-1) \int_{1}^{\infty} x^{1-p} dx \\ &= (p-1) \frac...") | May 1'23 at 16:56 | +308 |