The Spearman's rho and Kendall's tau-b statistics measure the rank-order association between two scale or ordinal variables. They work regardless of the distributions of the variables.

step  To obtain an analysis using Spearman's rho, recall the Bivariate Correlations dialog box.

step  Select Sales in thousands as an analysis variable.

step  Deselect Pearson and select Spearman.

step  Click OK.