Can anyone advise? I have Adjusted R^2 0.7975, n=10 and K=3 and need to calculate R^2 from this. I'm using the formula AdjR^2 = 1- (1-R^2) X n-1/n-k-1 Struggling to rearrange this. Got to AdjR^2/ n-1/n-k-1 -1-1 = R2 please someone help! thanks