Mmm, I usually always recommend doing all the math from the very bottom to the end. In this case if you want you can start with Get Ready for AP Statistics, then HS Statistics, and then AP Statistics. The concepts to know how to use don't need any prerequisite other than elemental arithmetic. 

Still, I think it's going to be more fulfilling if you do all the math. If it's easy you will get the 100 % quickly, (unit tests and finally mastery tests when having small gaps). If you're going to get into a math degree or even directly an stats degree you surely will have to know LA, Multivariable Calculus, combinatorics, etc. 

Thanks for your prompt answer Pablo, it is very helpful and I agree with you about doing "all the math". I have indeed started from the beginning, and I am just about to start pre-calculus. My intention is to continue exploring math as far as possible. So from your answer, I gather that I can already start the statistics courses, in the sequence you mentioned, and continue with pre-calculus, differential calculus and so forth. Thank you again

Correct Greg, good luck and bon voyage in your learning adventure 

Hi Irky,

I am now almost done with the unit Statistics and Probability.

Before that, I started with Algebra1, then Algebra2, Get Ready for Precalculus, and High School Statistics. The next unit I will be doing are: AP? College Statistics, Precalculus.

I find it helpful not to skip any step in the process. Concepts I've learnt before, even if not obviously related to the current topic I am studying, help me understand better and faster.

I recommend that you do all the units and achieve Mastery before moving on. I also recommend reviewing the material you've already learnt, so you don't forget it.

All the best