For the following set of scores: Original Data X Y 4 5 6 5 3 2 9 4 6 5 2 3 ∑X ∑Y SSXX SSYY ∑XY SP r Add 2 points to each X value: 2 Added to Each X X Y 6 5 8 5 5 2 11 4 8 5 4 3 Compute the correlation for the modified scores using two decimal places. ∑X ∑Y SSXX SSYY ∑XY SP r How does adding a constant to every score affect the value of the correlation? The correlation changes sign. The correlation does not change. The correlation increases. The correlation decreases.

For the following set of scores: Original Data X Y 4 5 6 5 3 2 9 4 6 5 2 3 ∑X ∑Y SSXX SSYY ∑XY SP r Add 2 points to each X value: 2 Added to Each X X Y 6 5 8 5 5 2 11 4 8 5 4 3 Compute the correlation for the modified scores using two decimal places. ∑X ∑Y SSXX SSYY ∑XY SP r How does adding a constant to every score affect the value of the correlation? The correlation changes sign. The correlation does not change. The correlation increases. The correlation decreases.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 24PFA

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