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Exercise 3-6.1 Two random variables X and Y have a joint probability density function of the form 148 CHAPTER 3 SEVERAL RANDOM VARIABLES -0 elsewhere Find the probability density function of Z-XY. Answer: -In (z) Exercise 3-6.2 Show that the random variables X and Y in Exercise 3-6.1 are independent and find the expected value of their product. Find ElZ] by integrating the function zf(z) Answer: 1/4

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df of z is Xand Vare indendentif f)y y(a).fyy)yy( nce K and Hareindeptnden

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