
11302遠距教學_機率2_後測
Authored by 陳 品妍
Mathematics
12th Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
班上有30位同學,數學及格者有18位,英文及格者有21位,两科皆及格者有13位,則两科皆不及格有幾位?
4
9
12
17
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某單選題有四個選項,且只有一個選項正確,若答對一題可得 6 分,則答錯一題時應倒扣幾分才算公平?
1.5
2
2.5
3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若 50 個玩具中有 4 個不良品,現在任取 10 個,則不良品個數的期望值為何?
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若一群資料數值為 13、8、5、12、17、9、6,則中位數為何?
8
9
12
13
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
投擲兩顆公正骰子一次,在出現點數和為8的條件下,則其中一顆骰子出現3點的機率為多少?
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