摘要
把对称差应用到事件的运算中 ,得到一些特别的结论 。
By applying symmetric difference to the operation of events, we can draw some special formulas and solve some probabilistic problems simply and directly.
出处
《昭通师范高等专科学校学报》
2002年第2期27-29,共3页
Journal of Zhaotong Teacher's College
关键词
事件
对称差
独立性
events
the symmetric difference
independence of events
