Calculating the regression line: 1)Calculate the mean and standard Deviation of the dataset. 2)Calculate the corelation coefficent (1/(n-1))*(product of the sum of x and y Z-scores). r = corelation coefficent 3)slope of a line = r (sd(y)/sd(x)) 4)finally calculate the y intercept using the mean (x), mean(y) and the slope calculated above. (y = mx + c)