Which Khan Academy Math Courses Should I Complete to Get Me Ready For Intro University Stats

Hello Everyone,

Here is a link to a course I would like to take to get me back into Math and on the road to completing a university intro stats course and finite mathematics course. I would take it here, and might up doing so, but it costs over $900 and really, I just want a refresher course before tackling some others, even if I end up paying for those. 

https://www.athabascau.ca/syllabi/math/math100.php

Could anyone suggest a path or course listing I might do and the order in which I could complete them. I know the topics are listed, but am worried about completing the wrong ones, or in the wrong order. 

I am doing this because I hope to start a master's of public policy/service program next year, but am lacking with math and stats skills. Thanks so much for your time and any help I may receive.