排列组合、概率、统计既是高中数学的重要内容,又是衔接初等数学与高等数学的纽带,它具有内涵丰富、涉及面宽、技巧性强、运算量大、应用广泛等特点,因而成为历年高考命题的重点和热点,受到广大命题者的青睐,不但在选择题或填空题等客观题中必考,而且常常出人意料的以崭新面目? Arrangement combination, probability and statistics are not only the important content of high school mathematics, but also the link between primary mathematics and advanced mathematics. It has the characteristics of rich connotation, wide area, strong skill, large amount of operation and wide application. Proposition focus and hot spots, favored by the majority of proponents, not only in the multiple choice questions or fill in the blank questions and other objective questions will be required, and often surprisingly to a new face?