In China, lots of excellent students who are good at maths take an
active part in various maths contests and the best six senior high
school students will be selected to form the IMO National Team to
compete in the International Mathematical Olympiad. In the past ten
years China's IMO Team has achieved outstanding results -- they have won
the first place almost every year.The author is one of the senior
coaches of China's IMO National Team, whose students have won many gold
medals many times in IMO.This book is part of the Mathematical Olympiad
Series which discusses several aspects related to maths contests, such
as algebra, number theory, combinatorics, graph theory and geometry.
This book will, in an interesting problem-solving way, explain what
probability theory is: its concepts, methods and meanings; particularly,
two important concepts -- probability and mathematical expectation
(briefly expectation) -- are emphasized. It consists of 65 problems,
appended by 107 exercises and their answers.