First and foremost, welcome to the forum.
Next, as a new member you need to know that there is a second area to sign into, in order to have access to "Specific Exam Forums".
Once you have signed into IC, next look over to the right corner, above the forum and you will see a second area to sign into. Once you have done that you will see a 4th category at the bottom. Click on that. You can scan through them all or you can do another search. Again, toward the right you will see a box to search this forum specifically. Type in "statistics" and you should see anything related to that but find the full forum with everyone's notes and shared experiences that will help you to focus and plan.
I would suggest you go to the end and work backwords until you find a place you think has good information but is more recent. In other words, some forums may have material that is 2 or 3 years old and many of the tests have changed since then. Certainly you can read through them but you may not have the time. I personally go back about a year and a half to 2 years, scan to see if there are comments on a new test version, and go forward from there. I copy anything I think is pertinent to a Word document. Then I Google those subjects or research any suggested texts.
There are also the IC cards for you to study -- but many subjects (especially Upper Level) that may require you to study other items. Those are accessed from the initial sign on/announcement page for IC.
I just went to the public library this past Saturday and took out a book that was suggested in this forum for statistics -- the one for Idiots -- that says it all for me.
Good luck.
Let us know how you do. This is the same place you can post your personal experience and suggest areas for others to concentrate their efforts.
Again, welcome to IC.