The relationship between two variables that vary together in the same direction; as one grows larger, the other also grows larger. For example, gasoline prices and sales of fuel-efficient vehicles have a positive correlation.
Positive correlation definition: Direct association between two variable. As one variable becomes large, the other also becomes large, and vice versa. Positive correlation is represented by Correlation Coefficients greater than 0.
A negative correlation is said to exist when as one covariate increases the other covariate decreases. An excellent example of a negative correlation would be number of hours spent socialising by a group of students and their eventual examination mark.
A Negative data correlation is an inverse relationship between two variables such that as one variable increases, the other variable declines. For example, the sales volume of large vehicles is negatively correlated with the price of gasoline.
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