Sample correlation coefficient denoted sample by r by

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Unformatted text preview: efficient Denoted Sample by r by 7-7 Population Correlation Coefficient Denoted Population ρ (Rho) Values Range from -1 to +1 Sample Correlation Coefficient, r STAT 2023 - Holbrook ∑(X n r= i =1 ∑(X n i =1 r= 7-8 ∑ i − X ) (Yi − Y ) −X) ⋅ 2 i ∑ (Y − Y ) n i =1 ( ∑ X )( ∑ Y ) XY − n ( n − 1) s x s y 2 i ∑Z Z = x ( n − 1) y Coefficient of Correlation Values STAT 2023 - Holbrook -1.0 7-9 -.5 0 +.5 +1.0 Coefficient of Correlation Values STAT 2023 - Holbrook No No Correlation Correlation -1.0 7 - 10 10 -.5 0 +.5 +1.0 Coefficient of Correlation Values STAT 2023 - Holbrook No No Correlation Correlation -1.0 -.5 Increasing degree of Increasing negative correlation negative 7 - 11 11 0 +.5 +1.0 Coefficient of Correlation Values STAT 2023 - Holbrook Perfect Perfect Negative Correlation Correlation -1.0 No No Correlation Correlation -.5 Increasing degree of Increasing negative correlation negative 7 - 12 12 0 +.5 +1.0 Coefficient of Correlation Values STAT 2023 - Holbrook Perfect Perfect Negative Correlation Correlation -1.0 No No Correlation...
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