Reddit mentions of Probability and Statistics for Engineering and the Sciences

https://www.amazon.com/Probability-Statistics-Engineering-Sciences-Devore/dp/0538733527

This is good book for basic stuff. http://www.amazon.com/Probability-Statistics-Engineering-Sciences-Devore/dp/0538733527. See if you can get it from your uni's library.

Honestly, ignore the "for engineering" part of "Statistics for Engineering." They're largely the same content.

How much calculus have you taken? Does the class use calculus?

First, the cartoon guide to statistics is surprisingly helpful for some people.

For a more traditional textbook, you might try Devore's main intro book.

Almost every student finds statistics confusing and it's either difficult to teach, or just difficult to learn. It's also a fractal discipline, since you can keep going deeper and deeper, but it's generally just going over the same few concepts with additional depth. If you end up in a class that's not well suited to your mathematical background it's especially frustrating.

Good luck.

Ross for probability. He wrote the undergrad book on probability. It is on it's 9th edition, so you can probably find an older edition for next to nothing.

Statistics for engineers and scientists by Devore would probably be a good book for learning stats as a physicist. I've taught out of it a few times and I like it as book. Again, you can find an international edition of this book for next to nothing.

Casella and Berger is a first year grad text/ upper level undergrad text. You need some mathematical maturity to do use it and it probably goes a lot deeper than you would want. I would not suggest it.