I got a Big D in my mock for stats
rest were A's and Bs.
I solved all Pure maths paper 1 past papers from 01 to 09 and physics and business.
Yet i havent even completed a year for statistics.
And add to that
i spend 2 to 3 pages solving a permutation and combination question taking almost 2 hours of my study time.
Suggest me anything anYTHING that might be helpful for permutations and combinations
God Bless.