Program in python 3.x. Please add comments in order to increase understanding of the solution. (If possible try to make the code as simple as possible). Thanks

Given a list of points of the form [(xi, /i), (x2, 32), (^n, )), write a function called plotRegression that accepts a list as a parameter and uses a turtle to plot those points and a best-fit line according to the following formulas: Tn = Where z is the mean of the x-values, y is the mean of the y-values, and n is the number of points. The Greek letter represents the sum operation. For example, zi indicates the addition of all the x values. Your program should analyze the points and correctly scale the window using setworldcoordinates so that each point can be plotted. You should then draw the best-fit line in a different color through the points