I need help with these practice problems! Please any help is appreciated. In the document itself, the kernel of Gamma is stated as x^??1 * e^??x.

2. Let X be a random variable with a Gamma distribution. Use the method of recognizing the kernel of the Gamma function (explained above) to find E(X ) and E(X?) (a) Find E(X). (b) Find E(X? ). (c) Find var( X). 3. Let X be a continuous variable with density function f(x) = 1+3 2 -1