Question

Explain briefly, the usefulness of correlation coefficient

Answer 1

When both variables are normally distributed use Pearson's correlation coefficient, otherwise use Spearman'scorrelation coefficient. ... There is no attempt to establish one variable as dependent and the other as independent.

Answer 2

Hey dear here is the answer


In summary, correlation coefficients are used to assess the strength and direction of the linear relationships between pairs of variables. When both variables are normally distributed use Pearson's correlation coefficient, otherwise use Spearman's correlation coefficient.

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