作者n19860423 (n19860423)
看板Math
标题[机统] 文氏图
时间Mon Apr 11 12:53:03 2011
Electrical, chemical, industrial, and mechanical engineering curricula were
studied. It was found that some students took no statistics, some took one
semester, and others took two semesters. Consider the following events:
A: Some statistics is taken
B: Electrical and industrial engineers
C: Chemical engineers
Use Venn diagrams and shade the areas representing the following events:
(a) (A∩B)'
(b) (A∪B)'
(c) (A∩C)∪B
主要是题意没有看得很懂.......
我自己是解读成：
几门科目当中，有些学生是采计一学期，有些是采计两学期，有些人则是都不采计
事件A：有采计到的(不管是一学期或两学期)的人？
事件B和事件C....是不是没有叙述完整？！
因题意看不懂，也导致三事件的文氏图也不知道该怎麽画了
先谢谢各位了Orz
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