2.6 Solve the below problem: Let Y, and Y2 have joint density function (e (ity2), f(y1, y2) y1 2 0, y2 2 0, 10, elsewhere. 2.6.1 Find the marginal density function for Y, . Identify this density. (3.5) 2.6.2 For any y2 > 0, what is the conditional density function of Y1 given that Y2 = V2? (2.5)