It seems to be around 12%. However, I think getting an S in STEP is probably more inclined towards meeting a certain standard of maths and slightly less about relative scores in relation to other candidates.
(Original post by Zhy)
Too many people are achieving S-grades. They need to make an S* or S2-grade to filter out the people that just walk into Cambridge!!!!!11
You're joking right? You do know that the 12% of people who get S grades in II and III are 12% from a sample of mathematicians who have offers from Cambridge/ Warwick or are students who just want to sit the exam - i.e. they are the top x% of A level students.
I think the 'S' boundary is normally around 90~100, and it is higher in III. Getting >100 in STEP (i.e. getting more than 5 perfect solutions) is an incredibly high standard in my opinion.