Hello. I'm currently taking a lower level course in statistics. It is an okay course; however, it is not very rigorous and my professor is a "this is what you need to know" sort of teacher versus one who explains the theory and reasons behind the equations as well. The required textbook for the course is similarly bad. I have a hard time learning by rote, so I'd prefer to supplement the course material with a book that discusses statistics and probability and the theory behind them; yet, I'd also like a text that is not so esoteric as to prevent me, a lower division undergrad, from understanding without serious difficulties. My current level of education includes the basic lower division maths: calculus, linear algebra, differential equations. Thank you for your time.