This was a text book for a beginning class in statistics for business. I am skilled in math and only purchised it for fear of missing assigned problems. However, it went unused and, as such, I do not have much to say about it. It covers subjects from the types of data (ordinal, ratio, etc.) and the basics of probability, to chi-squared texts. The text is written in very plain language and seems to be suited for those who would need it. The four-star rating was only selected because I cannot specifically determine how appropriate it's content or presentation is for those who would rely on it.
The listing says formula card, but I could not find any formula card with the textbook. Other than this minor issue, everything was as expected and the book was shipped quickly and I had it before the start of my class.