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Unformatted text preview: c , bY + d ) = sign ( ab ) Corr ( X , Y ) The sign and the magnitude of ρ reveal the direction and strength of the linear relationship between X and Y. Problem 1 Let X and Y be two discrete random variables with joint probability mass function shown in the table. (a)Calculate the covariance and correlation coecient between X and Y. (b)Determine whether X and Y are independent. Problem 1 Solution Problem 2 I Problem 2 Solution Problem 2 Solution Problem 3 Problem 3 Solution Problem 3 Solution Problem 3 Solution Problem 4 Problem 4 Solution Problem 4 Solution I Problem 4 Solution Problem 5 Problem 5 Solution Problem 5 Solution Problem 6 Problem 6 Solution Problem 6 Solution...
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 Fall '08
 SMSLee
 Statistics, Covariance, Probability, Variance

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