<p>From what I heard stat 134 is much harder than econ 140. I don’t know how much harder 141 is than 140 but I do know that math 54 is not very time consuming. Linear algebra is very strait forward and easy to learn. The last four weeks of the course is on diff eq and that stuff can get a little hairy (especially Fourier analysis). I think those two classes are fine to take together.</p>