Select the correct code.

(a) The coefficient of rank correlation has the same limits as the Karl Pearson’s coefficient of correlation.

(b) The coefficient of correlation is independent of the change of origin but not of scale.

(c) The covariance between X and Y is defined as ∑xy/n where x=(X-X), y= (Y-Y) and n = no. of paired observations.

(d) bxy is called regression coefficient of X variable on Y variable

(e) If bxy is 0.4 and byx is 1.6, coefficient of determination would be 0.8.