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  3. 2 suppose an exact linear relationship exists between two random...

Question: 2 suppose an exact linear relationship exists between two random...

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2. Suppose an exact linear relationship exists between two random variables X and Y That is, let Y-α + ßx, where α and β are constants and β > 0. Prove that ρχ,-1 Hint: Substitute α + βΧ into the formula for Pry and apply the covariance rules.

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