Unformatted text preview: h ( x ). Question 3: Problem 4.35. (Hint: You should use techniques similar to Example 4.26.) Question 4: Consider two random variables X and Y with means and variances being ( m X ,σ 2 X ) and ( m Y ,σ 2 Y ) respectively. We further assume that X and Y are independent. 1. Find out the value of E ( XY ) in terms of ( m X ,σ 2 X ) and ( m Y ,σ 2 Y ). 2. Let Z = X + Y . Find out the values of E ( Z ) and E ( Z 2 ). 3. Find out the value of Var ( Z ). Question 5: Problem 4.61....
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This note was uploaded on 05/02/2009 for the course ECE 302 taught by Professor Gelfand during the Spring '08 term at Purdue.
- Spring '08