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Explain what a correlation coefficient (r-value) is and how we can use it to help us interpret a scatter plot.Be sure to address the full range of possible values for the r-value and their meaning.

User Dimitar Asenov
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18 votes
18 votes

The correlation coefficient is the measure of correlation between two variables, it basically determines wheter the variables have some type of correlation or not. The value can go from -1 to 1, where values between -1 and 0 represent a negative correlation, the value 0 represents no correlation at all, and values between 0 and 1 represent a positive correlation. This values can helps us interpreting a scatter plot by providing a estimate of the correlation between the variables.

User Krann Sock
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