It depends on what you need. The book covers early to mid-level statistics and is more of an overview of the topic. The book also lacks practice problems. But if you need help with the basics, then it'll be of use.
Statistics for Dummies is really a helpful book because I get enthusiastic while go through the book. I am recalling all previous basic in statistics. The book pages are nicely arranges. As a result, I like to study it.
It is a good companion to high school statistics or introduction to statistics courses at a college level. It is not a good fit for advanced math classes.
