Exam papers for the New Zealand NCEA Level 3 Maths, with worked solutions. These have been checked against the published mark schemes so they’re basically correct, but they don’t pretend to be polished final products.
More Practice Exams and lots of Excellence Questions are available at Snedmaths
I’ve done fewer of these because supporting 'resource' material isn’t always available (NZQA are a bit sloppy about providing it) and also because this isn’t really mathematical statistics: it crosses a line into something like ‘societal interpretive statistics creating a public informed about how to manage information’. That’s important in its own way, and some day I might go back to it - but not just yet.