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Correlation Coefficient

This document provides formulas for calculating the sum of squares (SS) for the x-values (SSxx), the sum of squares for the y-values (SSyy), and the sum of squares for the product of x and y (SSxy). It then provides a formula for calculating the correlation coefficient (r) using the sums of squares values, which measures the strength and direction of a linear relationship between two variables.

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Angelina De Asis
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49 views1 page

Correlation Coefficient

This document provides formulas for calculating the sum of squares (SS) for the x-values (SSxx), the sum of squares for the y-values (SSyy), and the sum of squares for the product of x and y (SSxy). It then provides a formula for calculating the correlation coefficient (r) using the sums of squares values, which measures the strength and direction of a linear relationship between two variables.

Uploaded by

Angelina De Asis
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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2 1 2

SS xx =∑ . x − ( ∑ .x)
n

SS xy =∑ xy - 1 ¿
. n
1
SS yy = ∑ y2 - ¿
n

s s xy
r=
√ s s xx ⋅ s s yy

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