Question: A fitted linear regression model is = 30 + 0.5x. The residual at the point (20, 45) is: 1. 0 2. 10 3. 5 4.

A fitted linear regression model is = 30 + 0.5x. The residual at the point (20, 45) is: 1. 0 2. 10 3. 5 4. -5

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