We are currently working toward getting thousands of pages of curriculum into a format for sharing. In the meantime, we want to share these videos of MetaPrep founder Mathew Crawford working with a high school dropout who got motivated to rebuild his understanding of Mathematics in order to go to school to study Statistics. He progress was similar to that of advanced high school students, which is true for most people once they find the motivation to work at it.

https://www.campfire.wiki/doku.php?id=rounding_the_earth:a_path_to_statistics