Thank you so much for the prompt reply guys. I think I'm good at maths and have a good grip as I have always preferred numbers over readings, and have been studying a lot of math during the course of my studies. And secondly taking statistics is not an issue for me as I have already taken advance courses, but the problem is, my friends from university and around are saying that the math of CSS is totally different than what I have studied. I have a background of conceptual mathematics from O & A levels and after that the courses I have mentioned, I did those in LUMS. Besides I have seen the curriculum, it looks pretty doable to me, but I'm still not sure whether it is the right step or not!