《概率論(英文版)》講述瞭：This is a text tor a one-quaaer or one-semester course in probability．aimed at stu．　dents who have done a year of calculus．The book is organized so a student can learn　the fundamental ideas of probability from the first three chapters without reliance　 on calculus．Later chapters develop these ideas further using calculus tools．　The book contains more than the usual number of examples worked out in detail．It　is not possible to go through all these examples in class．Rather,I suggest that you　 deal quickly with the main points of theory，then spend class time on problems from　the exercises，or your own favorite problems．The most valuable thing for students　to learn from a course like this iS how tQ pick up a probability problem in a new　 setting and relate it to the standard bodv of theory．The more they see this happen in class，and the more they do it themselves in exercises．the better．　

　　The style of the text is deliberately informal My experience is that students learn　more from intuitive explanations，diagrams，and examples than they do from the0．rems and proofs．So the emphasis iS on problem solving rather than theory．

Order of Topics．The basic roles of probability all appear in Chapter l．Intuition　for probabilities is developed using Venn and tree diagrams．Only finite additivity of　probability iS treated in this chapter．Discussion of countable additivity iS postponed　to Section 3．4．Emphasis in Chapter l is OD the concept of a robability distribution　and elementary applications of the addition and multiplication rules．Combinatorics　appear Via study of the binomial and hypergeometric distributions in Chapter 2．