Question
The Gamma pdf for continuous random variable Y takes the form f(y)=\left\{\begin{array}{cll} \frac{1}{\beta^{\alpha} \Gamma(\alpha)} y^{\alpha-1} e^{-y / \beta} & y>0 \\ \mathbf{0} & y \leq 0 \end{array} \quad \text { for } \alpha, \beta>0\right.
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