Hey, probably a little unorthodox of a question for the forum, but everyday i find myself needing a better justification for data sets and am at a point where i think i need to make a concerted effort to advance my math skills, particularly in the field of statistics. What would be some good resources to self study this niche of mathematics? I could follow along with random videos on YouTube, but i thought perhaps i would ask for the sake of best methods or thoroughness.