After taking an introductory stats class that used this book, I am turned off statistics forever. Sheldon Ross made the simplest ideas of probablity 10 times more difficult to understand than needed.He did give lots of examples, but examples don't help if you don't understand fundamentally how and where to use the formulas he gives you.There are a million formulas in this text, and a million ways to combine them. He uses examples that are really similar to each other, but with minute differences. That minute difference requires you to use a totally different combination of formulas to solve than the other very similar example. Can you imagine how annoying that is whey he hasn't explained things well?Don' t use this as an INTRO text!