Let Y1 and Y2 have a joint density function given by f (y1, y2) = 3y1, 0 y2 y1 1, 0, elsewhere. a Find the marginal density functions of Y1 and Y2. b Find P(Y1 3/4|Y2 1/2). c Find the conditional density function of Y1 given Y2 = y2. d Find P(Y1 3/4|Y2 = 1/2).

Chapter 3 | Probability During this week Tuesday's class, the professor covers the following materials: 1.basic probability rules and draw Venn diagrams 2.calculate probabilities and conditional probabilities in finite sample spaces 3. the concept of independence 4. random variables and use cumulative distribution function to calculate probabilities...