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covariance matrix

 
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Apr22-10, 02:08 PM   #1
 

covariance matrix

if you've got c1=2x+3x, and c2=x-y, with cov matrix x,y = [7 4].how do you find C = (c1,c2)transpose?
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Apr22-10, 05:21 PM   #2
 
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http://en.wikipedia.org/wiki/Covariance#Properties
Apr23-10, 12:17 AM   #3
 
Thank you for helping out.. EnumaElish. Its all clear now.
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