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Correlation
01
a mutual connection or relation between two or more things
02
a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation)
03
a statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes in the other
Example
Research has shown a correlation between stress and an increased risk of alcoholism.
The regression analysis showed a strong correlation between the advertising budget and sales revenue.
In a scatter plot, a cluster of data points close to each other may indicate a strong correlation between the variables.
He denied the correlation between smoking and lung cancer, citing inconclusive studies.
Empirical research has shown a correlation between exercise and improved mental health.
