A、B、C排成一列,求B排在C的右邊的機率為何?

南一國中數學3下ch2-2

Quiz
•
Mathematics
•
9th Grade
•
Hard
數學 南一
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一硬幣有正反兩面,若投出正面的機率是投出反面的機率的3倍,則投出反面的機率為多少?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
心肝和寶貝是一對恩愛的情侶,當他們分隔兩地思念對方時,便會無意識的咬自己的手指甲,且每一根手指甲被咬的機會皆相同。有一天,他們又要分開了,道別時各自把自己的十根手指編成1~10號。分開之後的那天夜晚,在兩地的他們獨自望著天上皎潔的月亮想著對方,此時不自覺地又咬起了自己的一根手指甲。試問他們各自咬的那根手指甲的編號若是相同,其機率為多少?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲、乙、丙三人排成一列,問甲排在乙右邊的機率為多少?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如附圖,A箱中裝有2張相同的卡片,它們分別寫有數字-1、-2;B箱中裝有3張相同的卡片,它們分別寫有數字1、-1、2。現從A箱、B箱中各隨機地取出1張卡片,試問兩張卡片上的數字恰好互為相反數的機率為何?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有0、4、8三張數字卡任意組成三位數,任取一個三位數,則此三位數是奇數的機率為何?
0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有一粒骰子投擲第一次為1點之機率為a,第二次為2點之機率為b,第三次為3點之機率為c,則a+b+c=?
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