HW14 - Question 7: [Basic] Problem 6.57(a,b). Question 8:...

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ECE 302, Homework #14, due date: 4/27/2011 http://cobweb.ecn.purdue.edu/ chihw/11ECE302S/11ECE302S.html Question 1: [Intermediate / Exam Level] Problem 6.22(b,c). Question 2: [Intermediate / Exam Level] Suppose X 1 , . . . , X n are independent random variables. Let Y = X 1 + X 2 + · · · + X n . Derive the following formula. 1. E ( Y ) = E ( X 1 ) + E ( X 2 ) + · · · + E ( X n ) 2. Var( Y ) = n i =1 Var( X i ) + 2 n i =1 n j = i +1 Cov( X i , X j ). Question 3: [Intermediate / Exam Level] Problem 6.32. Question 4: [Intermediate / Exam Level] Problem 6.35. Question 5: [Basic] Problem 6.42(a). Question 6: [Basic] Problem 6.54(a). Then find the variances σ 2 1 , σ 2 2 , and the correlation coefficient between X 1 and X 2 . Then answer Problem 6.54(c)
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Unformatted text preview: Question 7: [Basic] Problem 6.57(a,b). Question 8: [Basic] Problem 7.1. Question 9: [Intermediate / Exam Level] Problem 7.2. Question 10: [Basic] Problem 7.8. Question 11: [Basic] Problem 7.10. Question 12: [Basic] Problem 7.11. Question 13: [Intermediate / Exam Level] Problem 7.13(a) Question 14: [Intermediate / Exam Level] Problem 7.14(a). Question 15: [Basic] Problem 7.15. Question 16: [Intermediate / Exam Level] Problem 7.22. Question 17: [Intermediate / Exam Level] Problems 7.17 and 7.24 Question 18: [Intermediate / Exam Level] Problem 7.28....
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HW14 - Question 7: [Basic] Problem 6.57(a,b). Question 8:...

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