
排列組合及概率
Authored by Abbe Leong
Mathematics
7th Grade
Used 11+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
用1到9這九個數字組成沒有重複數字的三位數,其中偶數的個數為
224
280
504
729
720
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
有6個男生和4個女生,從中選出4人參加環山跑活動,要求有女生參加,並且女生人數必須不多於男生人數,則不同的選法有多少種
80
120
170
480
840
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
把 A、B、C和D四個不同的球放到四個不同的盒子中,每個盒子擺放一個球,其中A球不能放到第一個盒子中,B球不能放到第二個盒子中,則不同放法數有多少種
8
10
12
14
16
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
投擲骰子兩次,所得點數的乘積為 12 的概率為
以上皆非
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
袋中有7個黑球和3個白球,從中任取2球,抽到黑球和白球各1個的概率是
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
小明要進行中文、英文、數學測驗,三科測驗合格的概率分別為0.7,0.6和0.5,則他至少有一科測驗合格的概率是
0.64
0.79
0.8
0.86
0.94
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