[機統] 文氏圖
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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