DD hoping to secure a place mid-term at a school which studies and takes GCSE Statistics in Year 9 which she's just started. At best she'll start at the end of half-term - 6 weeks into the year. At worst, after the Easter holiday.
If she starts in October then I think she could play catch-up with the rest of the class, although we'd source some online study courses to help her. She does have a natural maths ability and it's her favourite subject.
However, if she starts after Easter - effectively just before she could sit the exam - is it worth/is it easy for her to self-learn statistics and still sit the GCSE alongside her peers? Given her love of maths in general?