Statistics: Slope vs. Correlation Prove that Information from class or textbook: b = Sxy/Sxx, SSE = Sxy = (Sxy)2/Sxx, r = Sxy/ SxySyy, Sl = SSE/n - 2 = Syy - (Sxy)2/Sxx/n - 2 Using the above information, we can easily simplify each t - statistic to show that they are equal. This requires three sheets of paper(see below).