Recommendations for online pre-calc/calculus refresher

Salutations, I am preparing for analytics course this September and I wanted to do a quick refresher of pre-calc/calc so that I can jump right in ( it has been a while and I am worried I would hold everyone back ). I am not the most math oriented person ( as in, I really have to dig through a lot of examples and exercises to get the idea on how to approach things; I don't think in curves ). The course itself deals with regression modelling, clustering and predictive statistics if that helps. I debated a tutor, but it may be a little harder now ( which sucks since, for some reason, in person instructions motivate me more ). I guess the real question is: Can you recommend any online resources that could help me prepare?