Alevel Maths Edexcel including Yr12+13 / Yr1+2

If you want to check out all my revision resources for A-level maths or see a pdf/word version of my flashcards compared to an Anki deck check out this link: https://github.com/LemonICodes/A-level-Resources/tree/main/Edexcel%20Maths

[Note: The topics are separated by tags not subdecks] These are A level Maths Edexcel flashcards including Pure, Mechanics and is MOSTLY Statistics , most AS and A level topics. I hope these can be helpful for you revision go and smash those exams, you're a legend for checking these out! Please treat my notes as another textbook don't learn everything from verbatum [unless they are definition i guess] be intentional I would advice. Please try your best you won't regret trying your hardest, you only do a level once pls try. I did A levels from September 2023 to June 2025.

Sample Data

Front	When dealing with a turning point if dy/dx = 0 (@Tp) &dx2/ d2y < 0 is the point a local minimum (x2) or maximum (-x2)?
Back	Local maximum (-x2)

Front	What is the z-score? How is it calculated?
Back	A measure of how many standard deviations a value is to the right of the mean which is calculated by: This is sometimes referred to as a test statistic in context

Front	What are the disadvantages of opportunistic sampling (convenience sampling)? (2)
Back	Unlikely to provide a representative sampleHighly dependent on individual researcher