Examlex
The relationship between chocolate sales and student happiness can be tested using the ______.
Variables Correlated
When variables are correlated, it means there is a statistical relationship showing that changes in one variable are associated with changes in another.
Negative Correlation
A relationship between two variables in which one variable increases as the other decreases, indicating an inverse relationship.
Perfect Correlation
A relationship between two variables where one variable can be perfectly predicted from the other, represented by a correlation coefficient of -1 or 1.
Correlation Coefficient
A numerical measure that quantifies the degree and direction of a relationship between two variables.
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