You probably need to take Calc 1-3, linear algebra, mathematical statistics, and probability theory before entering any of the programs you mention. I would try to take those through any local program at night, online, or daytime if you can swing it.
The master's degrees you mentioned would be fine, but wouldn't be extremely impressive to me. If paired with a good test score and something that shows understanding of what you are getting into, then they would be a positive. The biggest thing you are missing from an online masters is the opportunity to interact with academics and get letters of recommendation. Think about ways to do that.