Suppose you have a data file example.dat with two columns that contain bivariate data. Let's call these two variables X and Y.
Write a MATLAB script (accompanied by explanations) that will use the data from the file to do the following:
a. Make a plot so you can visually check if fitting a least-squares line is appropriate (comment on why you chose that kind of plot and what you ate looking for in it).
b. Calculate the coefficients of the least-squares line.
c. Add the least-squares line to the data plot. d. Calculate the coefficient of determination r2 (comment on what values you would expect based on how your plot in part a can look like).