排列,組合,概率
Authored by coffee ng
Mathematics
12th Grade
Used 1+ times
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10 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
5名男生和1名女生排成一行，若女生不排頭也不排尾，則不同排法的種數為
(a)
2.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
8把不同的鑰匙中只有1把能打開某鎖，那麼從中任取2把能將該鎖打開的概率為
(a)
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
甲、乙兩人各進行一次射擊，甲擊中目標的概率是0.8，乙擊中目標的概率是0.6，則兩人都擊中目標的概率是
(a)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
10
20
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
在1,2,3,...,9的九個數字裡，取四個數字排成一個首末兩個數字是奇數的四位數，這樣的四位數有多少個?
(a)
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