1. The problem statement, all variables and given/known data Data set in X with mean xbar = 100 and standard deviation Sx = 10 Find ybar and Sy for 2(Yi-5)/10 + 7 2. Relevant equations 3. The attempt at a solution All the problems I have seen are in the form yi = axi + b in which case the mean ybar = a(xbar) + b and Sy = aSx What does Yi represent exactly? How does it relate to xi?