HW3 - EML 6934 Fall 2009 Optimal Estimation University of Florida Mechanical and Aerospace Engineering HW 3 Issued Due(in class Problem 1[5 pt If X

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Unformatted text preview: EML 6934 Fall 2009 Optimal Estimation University of Florida Mechanical and Aerospace Engineering HW 3 Issued: September 11, 2009, Due: September 18, 2009 (in class) Problem 1. [5 pt] If X ∼ N ( μ,σ ), compute P ( | X − μ | > 3 σ ). If you need tabulated values of erf ( x ), you can find them in the reading material available in the e-learning website (chapter 2) Problem 2. [5+5 = 10 pt] Show that if Y ∼ N ( μ,σ ), then E[ Y ] = μ and var ( Y ) = σ 2 . Problem 3. [10 pt] If X is a random variable that is uniformly distributed between a and b , and γ is a real constant, show that γX is uniformly distributed between γa and γb . (hint: define Z Δ = γX . Then F Z ( z ) = P ( Z ≤ z ) = P ( X ≤ z/γ ) = F X ( ... ) = .. ) Problem 4. [10 pt] Compute the mean and variance of a random variable X that is uniformly distributed between a and b . Problem 5. [5 pt] Show that for a r.v. X , V ar ( X ) = E[ X 2 ] − ( ¯ X ) 2 . [5 pt] Problem 6. [5+5 = 10 pt] The unit square U in R 2 is the region such that the points in this region have their x- and y- coordinates between 0 and 1. Letcoordinates between 0 and 1....
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This note was uploaded on 07/03/2011 for the course EML 6934 taught by Professor Staff during the Fall '08 term at University of Florida.

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HW3 - EML 6934 Fall 2009 Optimal Estimation University of Florida Mechanical and Aerospace Engineering HW 3 Issued Due(in class Problem 1[5 pt If X

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