Question

Calculate the correlation coefficient between fixed acidity and volatile acidity and
between residual sugar and chlorides. Comment on the strength and direction of
association for the two variable pairs.

Answer 1

The correlation coefficient is a statistical measure that calculates the strength of the relationship between the relative movements of two variables. The values range between -1.0 and 1.0. 

The correlation coefficient is determined by dividing the covariance by the product of the two variables' standard deviations.