In the simple linear regression model Yi = α + βXi + ei, the Ordinary Least Squares (OLS) estimator for the slope coefficient β (denoted as b̂) is given by:

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Mathematics · Regression Analysis

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Σ(Xi - X̅)(Yi - Y̅)Σ(Xi - X̅)2

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Answer 1

Σ(Xi - X̅)2Σ(Yi - Y̅)2

Answer 2

Σ(Xi - X̅)(Yi - Y̅)√Σ(Xi - X̅)

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Answer 4

Σ(Xi - X̅)(Yi - Y̅)Σ(Xi - X̅)2

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