My sis who did GCSE stat told me I'll just ace it in no time. Although, I looked at her paper and there were some complicated equations.
There was a sign that looked like 'E' which kept recurring, I got A* in Maths, and I got no knowledge of Stat, do you think I can cope?
Stats is really easy - S1 is pretty much GCSE stats (only a few new bits and bobs to learn)
Most of it is Core maths. Stats or mechanics is an SSM (student selected module) and constitutes only part of your course. You have to pick one, though you could ask your teachers if you can do further core maths, eg C5, C6.
I'd do mechanics, it's easy. But stats is useful for a lot of other stuff.
Do what YOU enjoy. Personally, I enjoyed doing Mechanics, and intend to do M2 if my college allows me...
If you like Physics do Mechanics, however if you prefer Statistics, then of course do Statistics!
My college does the same:
i)Maths & Stat.
ii)Maths & Mech.
C1 C2 C3 C4, and;
i) S1 S2
ii) M1 M2
iii) FP1 FP2
S1 assumes no knowledge of statistics at all! You learn mean, median, mode, range etc all over again! (Yes, despite learning them when you were 10).