<p>Thank you everyone for your replies.
As Ucbalumnus mentioned my mathematics is limited to a high school level. Plane geometry, calculus, elementary combinatorics…
I will consider taking a postgraduate course in Statistics. My main worries is that I might not be able to cope with the course due to insufficient knowledge or lack of problem solving skills. That is my main concern. I don’t mind spending 4 years on operations research or applied math degree if that will give me a solid understanding.</p>