# How do you find the r value of a linear regression equation?

## Question:

How do you find the r value of a linear regression equation?

## Correlation Coefficient

A correlation coefficient,** r**, measures the correlation or relationship between two variables. If two variables are not correlated at all, the value of **r** is 0. On the other hand, if two variables have perfect, positive, linear correlation, the value of **r** is 1.

## Answer and Explanation: 1

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View this answerThe value of the correlation coefficient **r**, can be determined using the following formula:

{eq}r = \dfrac{\sum \left ( \dfrac{x_i-\bar{x}}{S_x}...

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Chapter 8 / Lesson 12Discover types of correlation coefficients. Identify correlation properties, and see examples of positive correlation, negative correlation, and neutral correlation.