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
主要是題意沒有看得很懂.......
我自己是解讀成：
幾門科目當中，有些學生是採計一學期，有些是採計兩學期，有些人則是都不採計
事件A：有採計到的(不管是一學期或兩學期)的人？
事件B和事件C....是不是沒有敘述完整？！
因題意看不懂，也導致三事件的文氏圖也不知道該怎麼畫了
先謝謝各位了Orz
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