Define correlation, how many types of correlation ,draw and explain?
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In statistics, correlation or dependence is any statistical relationship, whether causal or not, between two random variables or bivariate data. In the broadest sense correlation is any statistical association, though it commonly refers to the degree to which a pair of variables are linearly related.
There are 3 types of corelation . Positive Correlation – when the value of one variable increases with respect to another. Negative Correlation – when the value of one variable decreases with respect to another. No Correlation – when there is no linear dependence or no relation between the two variables.
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