Recommendations for a level maths specifically statistics resources?

[Thethingswedoforlove]

Dd1 (year 12) seems to be struggling with the stats part of maths a level. Can anyone recommend any YouTube videos, books, question resources or anything that might help her increase her marks in this area? She is a grade 9 gcse student who can handle the mechanics and pure part very well. It seems odd to me but she definitely needs help! Thank you

the following youtube channels are all good - they cover the A level material (and more) but are not specifically aligned with A level:

www.youtube.com/playlist?list=PLH2l6uzC4UEW3iJO4T0qUeUEp_X-f1U7S
www.youtube.com/c/zedstatistics/
www.youtube.com/c/CreativeHeuristics/videos

@homeEd2021 thank you so much! Understanding the substance is the most important thing!

This set of youtube videos specifically accompanies the Edexcel textbook but the syllabus is the same for all exam boards youtube.com/channel/UCyyRmnmtgVy5Sm7_UiCLFgQ

This website has vides and questions by topic alevelmathsrevision.com/maths-categorised-exam-questions/

As does this one: www.mathsgenie.co.uk/newalevel.html

@noblegiraffe thank you so much. So helpful

Lots of AS stats is about learning stuff, e.g. defining sampling methods, rather than actually understanding concepts like pure / mechanics are - in my experience the majority of students (at least initially) find the stats harder - so it's not that surprising.

@dootball thank you for your reassurance. I find this surprising but it is a long time since I did my a level which was 50% statistics and probably much easier than they face now…